Disclaimer: I do not own anything in this cluster fuck of a series, they belong to whoever the hell is the owner of the series. Blah, blah, blah, let's get to the AN then the story already.
Summary:
A super nerd dies in a car accident then wakes up in the late 19th century Europe. He discovers he has the power of Console Commands... So what does he do? Why he edits himself into the God Emperor and creates his own Empire that eventually became an Inter-galactic one.
Warning this is a mega crossover and a potential cluster fuck, enjoy.
Edit 3/18/14- Added extra events into the timeline to allow myself a chance to do short stories and explain some extra things about the Imperium without making it sound like an extra-long AN and changed the number of ships in the reaper war. Beacuase 15,000 ships does not seem like it would be enough for a galactic invasion. Enjoy, also I kind of feel like a dick for forgetting about the Krogan. Why am I doing this? Because some asshole deleted all my shit from my flash drive which also had some of my newer fanfiction chapters in work. So I went back and decided to revise this. Also I made a civilization profile on my account page.
So I've been stuck at my cousin's house for the past few days with no access to my other stories. We began discussing our favorite Sci-Fi series along with fanfiction, and that somehow lead to the creation of this cluster fuck of a mega crossover fanfiction. First chapter is the timeline; second one will be the story. It will be posted within the next few days.
This fic was inspired by the Stargate fics where a guy from this world goes into that galaxy and creates his own Empire. Only in this one it will start from after the empire has been build and will be told through the perspective of the people living in it instead of the Emperor.
Now before I begin let me get three things out of the way
One this story is taking lower priority compared to my other stories so after chapter three don't expect frequent updates. Also it's more of an experiment.
Two this story is made just for the hell of it. It really should not be taken too seriously as the Divine Imperium my cousin and I created is overpowered as fuck. I notice that there is a distinct lack of Stargate fics where humanity just completely dominated and there is a lack of people willing to just say fuck canon I'm going to experiment around.
Three any characters from any series besides Stargate will be related in name only. As those characters were born in the Divine Imperium and not their world thus they will act differently. Don't like any of that don't read, this is a story for those people who just want to read something different.
Imperium tech is a mixture of Star Wars and Warhammer 40k tech. From all the races, excluding the Vong, Necron, Eldar, and Orc so mostly the Galactic Empire mixed with Imperium of Man tech.
Honestly I'm not sure what the hell to label this in the crossover section so I just went with Stargate/ Warhammer.
I am also taking OC characters if you have any you want me to include in the story just post them in the reviews or send them to me by pm. Also if you have an OC empire that you would like to see in the story do the same.
Divine Imperium= Everything I like about Sci-Fi in general thrown into one civilization just for the hell of it. It is a pretty shitty place to live in unless you are in the military.
Reapers get an upgrade in the numbers so they can go up against the Imperium; by the way they also get an upgrade in their ability to adapt.
After the timeline I will be releasing three chapters and if the story is successful I will continue to write it.
Sweet god this has got to be the most op civilization built. Anything under C'tan level tech would just be raped by the Divine Imperium. The Ori would put up a good fight, and the Goa'uld would just get raped. The Asgard if it weren't for their declining race might actually be able to take them on, the Ancients too.
Timeline (Have fun guessing what events were manipulated by console commands)
Divine Imperium Year 0(Earth year 1890): The Imperium is founded on Holy Terra with the Emperor taking the throne in the holy city of Britannia. After a short conflict between the heretic government forces of Britain that lead to their complete surrender. English is established as the official language of the Imperium.
The government of the Imperium is pretty much an absolute monarchy. With the Emperor in complete control and all decisions affecting the Imperium as the whole are handled by him.
The senate consisting of Nobles elected by commoners vote on the day to day affairs of the Imperium a commoner can run for a position in the senate but they can only be elected in by majority vote. In order for one to become a noble they must do one of three things. The first is they serve as an officer in the Imperial Guard for ten years. The second way is to be adopted into one of the thirteen noble houses. The last way is for a commoner to be elected into the senate.
Years 1-5: The unification of Britannia happens along with the birth of the first on record Psykers. Along with the formation of the official Imperial armed forces, split into three groups.
The first is the Imperial Guard; they are the primary combat forces of the Imperium and are the first and last line of defense.
The second is the Imperial Navy; they are the naval forces along with the newly formed air forces of the Imperium.
The third is the Imperial Legion: They are the first to always go into combat. If there is an invasion the Legion is the first to go in to secure a beachhead. Legion members fight the battle while the Guard fights the war.
Year 6: The first Imperial Guard corps training is completed. Along with the first Naval and Legion divisions are finished.
Years 7-10: The unification of the northern half of Europe, along with the beginning of the modernization of Terra.
Years 10-15: The Imperium enters the atomic age with the construction of the first Nuclear power plant occurs during Imperial Year 11. The Emperor is declared a living god by his people leading to a conflict with the church and a crusade being declared on the Imperium.
Years 15-18: The War for Europe begins and ends after several long years of fighting in a complete victory for the Imperium when the God Emperor single handedly destroys the entire city of Rome. This lead to the surrender of the countries still fighting the Imperium for fear the same would happen to them. Russia remained independent due to staying out of the war. During his destroying of Rome the entirety of the world felt the backlash of his awesome power. Leading to the birth of an unknown number of Psykers along with the forming of the Imperial Cult and the decline of religion worldwide.
Years 19-30: Reconstruction of Europe begins during Imperial Year 19. Along with the world entering a state of peace and a golden age of education begins during Imperial Years 21-25 along with the creation of the first computer.
On Imperial Year 26 the Imperium enters the Jet age with the creation the first jet engine. The noble house Arondight betrays the Imperium on Imperial Year 29 and leaks the technologies of the Imperium to the world. The great cleansing occurs on Imperial Year 30 where Legion and Guard forces begin and extermination of all the noble houses that were suspected of betraying the Imperium. A total of one hundred thousand people were killed. Out of that number only two thousand Imperial loyalist soldiers were killed.
Year 31-32: The Japanese civil war occurs and Japan is united under the Oda Clan banner the Oda clan preaching on how Japan should take it's place as the one true leader of the world. In Imperium year 32 they invaded the far eastern side of China and in a shocking victory manage to capture the entire eastern half of China by the end of the year humiliating the entire country. Also during Imperial Year 32 the Imperium forms the Psyker Academy to teach Psyker children how to control their powers along with forming the First Psyker Legion of the Imperial Guard.
Year 33: America annexes Canada, along with Alaska and forms an alliance with Mexico, creating the North America Alliance to help protect North America from invasion from the east. Japan begins making progress in their conquest worrying Russia.
Year 34: The Russian civil war happens and ends just as quickly as it began leading Russia to now be united under the Soviet faction renaming the country the Soviet Union. The Soviet Union begins a full scale mobilization of its forces worried that Japan might invade them.
Year 35: The first super computer is created and the Imperium enters the space age with the launch of the first Satellite. Tensions rise up between the Imperium and the Alliance. The Alliance countries fearing the technology gap between the two nations begins building up their forces.
The Imperial Cult is established as an official religion and the Imperium is renamed the Divine Imperium. A civil war nearly erupts before the conspirators were betrayed and the Inquisition is formed. The Inquisition is the right hand of the Emperor. They handle all counter intelligence, intelligence gathering, and are basically the secret police of the Imperium. Their authority is second only to the Emperor and is allowed to do whatever it takes to keep the Imperium safe.
The Imperial Inquisition is organized in a complex manor split between independent inquisitors, Ordo Majoris members, and Ordo Minoris. Once an Inquisitor has reached the rank of Acolyte they can decide to either remain independent or join and Ordo.
Joining an Ordo allows the Inquisitor access to the resources of that Ordo but they know have to follow the commands of the leader of an Ordo. The Ordo Majoris is one of the four largest Ordos in the Inquisition, the leaders of those Ordos form a council to decide matters of the organization as a whole.
The ranks of the organization is as follows certain Ordos may have different names for the ranks
Apprentice- The youngest a person can join is the age of ten if they have support of a Lord Inquisitor or are a talent Psyker.
Acolyte- After a five year apprenticeship they are given this rank and now have the authority of the Inquisition. They hold this rank until they have proved they're worthy enough for the next rank.
Inquisitor- at this point the person is given an Imperial Rosette signifying them as an agent of the Inquisition and given all of its powers. (They are also given their own starship once they hit this rank. Usually a frigate)
Senior Inquisitor- After seven years of service they are given this rank.
Lord Inquisitor- Given to Inquisitors who have shown excellent service. They have the authority to create their own Ordo provided they have the resources to do so.
High Lord Inquisitor- Theses people are the elite of the Inquisition. (They are given their own capital ship they also have the authority to order an exterminatus on a whole race.)
Grand High Lord Inquisitor- This rank is given to a leader of an Ordo Majoris, and is the leaders of the Inquisition and members of the council. In extremely rare cases an independent Inquisitor is given this rank along with a seat on the council for their excellent service. These people have all the powers of the Inquisition at their command. (Along with a fleet of typically thirty plus starships) There is usually no more than five Grand High Lords at one time.
The Internet is created…
Year 36-38: China has almost completely fallen under the control of Japan, the Soviet Union launch an invasion of China on the pretense of 'Liberating' it from Japan. The Soviet army is able to overwhelm the war tired Japanese forces with sheer numbers pushing them back to the edge of Asia. A ceasefire is signed on Imperium year 38 month 6, along with China being 'annexed' into the Union.
On Month 8 the Death Korps is formed along with the restructuring of how criminals are handled. The idea was simple. When a crime is committed depending on the seriousness of the matter, a criminal is either sent to a labor camp to work off their debt usually being worked to death. Executed, or conscripted into the Death Korps for twenty years. The Death Korps took the worst criminals broke them mentally so they showed nothing but extreme loyalty to the Imperium and turned them into expendable foot soldiers. After their service they are freed of all their crimes and allowed to live a normal life. Should they commit another crime they are re-conscripted until their death.
Year 39: The digital revolution begins in the Imperium along with the launching of the first Space Shuttle that traveled to the moon and back. The Imperium, Japan, and the Soviet Union began expanding their territories to Africa. They divided the country up with the Imperium taking the West, Soviets the north, and Japan the east with the south being a free zone.
Year 40: The North America Alliance launch their first satellite along with uniting into one country, called the Alliance. The CIA is formed and a shadow war begins between the Inquisition and the CIA.
Years 41-46: The world enters an uneasy period of peace, with all the major civilizations beginning to build up their forces. During this time dozens of unnamed heroes sprung up on all sides in the shadow war between the two major intelligence agencies of the world.
Years 47-57: The Oda clan head is assassinated and the assassin was captured and revealed to be a working for the Soviets. In rage they launch and invasion of China and the beginning of the war for Terra begins. On year 48 Alliance enters the war on the side of Japan, launching a surprise invasion to the north of Russia.
On year 49 Imperial Intelligence, the Ordo Imperious, begins to secretly support the Soviets. They provided weapons, and recon support. The Soviets under the combined might of Japan, and the Alliance are pushed back into their country. On year 50 the Imperium enters the Information age and the Soviets are being pushes back deeply into their country.
On Imperial Year 51 month 4 the Imperium enters the war mobilizing their entire military. The Soviet Union is near collapse and ask the Imperium for aid, they agree under the condition that the Soviets be annexed into the Imperium. Having no choice they accept, and the Imperium with their advanced technology begin a massive offensive. On Year 55 construction of a device called the world eater is begun.
On year 56 month six the Alliance launches a beach offensive that would be known as the Bloody Normandy occurred. Over two million Alliance troops launch a massive sneak attack on the beach of Normandy, in the France Providence set on cutting off the troops on the frontline. The intense battle lasted only six hours causing the loss of 99% of the Alliance forces and two entire Guard corps(900,000 Guardsmen), before they were able to take the beach. The Alliance having nowhere near the amount of troops needed to continue their plan were forced to retreat suffering , the Alliance was humiliated and the commander of the war front George Patton committed suicide several days later. This was the beginning of the end of the Alliance.
On year 57 Japan and the Alliance are pushed out of Asia and Europe at the battle of Berlin after a two month siege on all sides.
Imperial Year 57 month 8 day 20, the World Eater is completed. The World Eater is a super thermal nuclear bomb, the bomb is super charged with the Emperor's Psychic power. Causing it to go into overload just before detonation leading to an explosion 250x more powerful than normal the bomb is launched at Japan. The entire upper half of Japan is completely obliterated leaving nothing left. The Alliance and what is left of Japan surrenders to the Imperium the next day and an invasion of South America is launched, the disorganized continent quickly fell. Terra is unified by the Imperium two months later when South America fell and the Middle East surrenders when the Imperium threatened to use a World Eater on them. Future World Eaters did not use the Psychic powers of the Emperor but the power over ten thousand Psykers.
Years 57-70: The reconstruction of Terra begins. The integration of the world into Imperium society is complete on Year 65. On year 66-68 several terrorist groups aroused from a crossed the world only to be exterminated by the inquisition with no mercy. The worst case of rebellion occurred in the province of Vietnam in Imperial Year 68 month 1.
Open rebellion occurred in the northern half of the province led by the rebel Ho Chi Minh. Several Guard Regiments were deployed and after eight months of fighting a frustrating guerrilla force, the Grand High Lord Inquisitor of the Ordo Imperious, Charles Li Britannia, declared an Exterminatus on the entire Northern half of the province. The 501st, 408th, and 103rd Imperial Legions were mobilized and began a complete extermination campaign lasting only two months. This served as an example of what would happen to those who rebel against the Imperium.
On year 69 the reconstruction of Terra is complete. On year 70 construction of several space stations began. Over twelve new Imperial Noble Houses are found over the course of the past 13 years.
Year 75: After five years of construction the first orbital habitat station is complete.
Year 80: A massive 6km alien space ship crashes on Terra. The Imperial Guard lock the area down, and the ship crew were all killed in the crash. Information about an alien Empire located in another galaxy is found. The ship also contained information about technology hundreds of years ahead of Terra. (Yeah the nerd cheated by spawning a super star destroyer and having it crash into earth so they can steal the tech)
Year 100: The Imperium begins a massive industrialization using the tech gained from the alien vessel. Terra enters the space age when the colonization of the moon begins.
Year 120: The first battleship is completed using technology from the alien vessel. Colonization of Mars begins. Along with the secret project code named Adeptus Astartes begins. The Star Destroyer class ships are reversed engineered. Research into cloning technology is begins.
Year 135: The first Imperial battle fleet is complete consisting of twelve Star Destroyer class vessels. Two Imperial I classes battleships and ten Gladiator class cruisers.
Year 155: A beacon is found on Mars detailing how 50,000 years ago a race of machines exterminated the entire galaxy along with giving information on the Prothean race. The Imperium enters the Military Age and begins massive constructions of ships. A mass Relay is found at the edge of the sol system, the mass relay is moved away from the system.
Year 159: With all the technological advancements the average human was expected to live to be over one hundred and seventy years old.
Year 160: Cloning technology is completed and the first Clone Legion is put into production using genes from several elite members of the Imperial Guard. Clones could be created in two ways. The first is nature growth in which they are given a full eighteen year education and training, along with slight gene modification before being shipped into duty. This takes drastically longer then the second method but allows a clone to have the full lifespan of a human.
The second method is called Maximus, clones are modified to hit their prime and all their training and education is crammed into a short period of three years. This method shortens a clone lifespan to less than twenty five years of age. These clones are considered as expendable as Death Korps members.
Year 162: Project Adeptus Astartes is complete. The Thirteen Primarchs of the empire are born. These men and women were created from scientific engineering using genes from the Emperor. They are the demigods from the empire and from their genes the Adeptus Astartes are born, the elite super soldiers of the Imperium. The Primarchs are Immortal and have abilities that put them at the level of demigods.
Year 165: The Lightsaber is created and the Sith and Jedi program begins. The program takes high level Psykers and trains them to handle certain situations. The Jedi act as the diplomats for the Imperium using the Psyker ability to sense to assist in their duties while the Sith act as the shock troopers for the Imperium.
Year 170: The Sith and Jedi program combines with the Inquisition forming two separate Ordos.
Year 175: The Primarchs and their Adeptus Astartes legion are complete along with the first clone legion finishing their training. The entire Sol System is colonized and the Hyperdrive system is finally reversed engineered from the crashed Super Star destroyer and put on all the Imperial Space Vessels. The Divine Imperium begins a quick expansion into several nearby solar systems locking them completely down before beginning colonization. (Details on the Primarchs in the AN next chapter unlike the Warhammer ones the space marines now consist of men and women)
Year 180: The first Super Star Destroyer class ship is complete. The ship's length was over ten kilometers. The ship is named the Sword of the Emperor.
Year 181: Contact is made with a race called the Quarian and Turians at the colony of Shanxi. The migrant fleet enters Shanxi fleeing from the Turian fleet. A misunderstanding occurred due to a screw up several hours earlier and the Migrant fleet jumped into to Palaven the Turian home world on accident. The Turians mistaking it for an invasion attacks the Quarians forcing them to flee; they end up at Shanxi a new Imperium colony.
The Sword of the Emperor was doing a patrol in a nearby system when it detected the massive fleet coming to Shanxi. When the fleet arrived in the Shanxi system the Star destroyer hailed them. The Turians ignored them and continued to attack the fleeing Quarians and fired on the star destroyer in panic. The Sword of the Emperor response and complete crushed the Turian fleet due to them having no defense for laser weapons. Contact was established with the Quarian race and after several days of intense negotiations the Quarian were annexed into the Imperium and given several worlds similar to their home world.
The Imperium learns of the citadel council and the other races of the galaxy. The Sword of the Emperor, along with a dozen Star destroyers head to the citadel and make contact with the council.
After a failed series of negotiations the first Galactic War erupts with another Super Star Destroyer launching a surprised attack on Palaven and Primarch Lelouch of the Black Knights killing the Citadel council. While leaving the Citadel the Imperium fleet manages to destroy the Destiny Ascension along with crippling the Citadel fleet.
The Super Star Destroyer attacking Palaven bombard it from obit wiping out most of the life on the planet before leaving the planet to regroup with the Imperial fleet to begin the real invasion.
Years 182-183: The First Galactic War ends in victory for the Imperium. With their superior technology, brutal tactics, and numbers the Citadel forces were overwhelmed. On Imperial year 183 the council races surrender to the Imperium after the Asari and Salarian home worlds were captured. But the war didn't go completely smoothly for the Imperium. Over the course of the war as the defeat of the Citadel council seemed more evident tens of thousands of soldiers, C-sec officers, along with others defected to the Imperium.
Over ten billion citizens were killed by the end of the war and over a two hundred ships were destroyed. Near the end of the war the council forces were forced into bombarding a planet from orbit with nukes instead of invading the planet due to massive causalities suffered from an invasion. After the surrender of the council the other races were being integrated into the Imperium. Most just accepting it tired from all the warfare costing billions of lives.
Year 184: An Exterminatus was declared on the Batarian race when Batarian slavers attacked the colony of Vergas killing princess Euphimia of the Shepard family, one of the founding noble families. By the end of the year the entire Batarian race was wiped off the face of the galaxy.
This move leads to outrage on dozens of Asari planets, the planet-governors declaring their independence from the Imperium. The rebellion that would have ended in a another civil war ended as quickly as it began when the Imperial Star Destroyer, Titanious tested a new weapon on the rebellion planet, Cyone. The weapon was called a Cyclonic torpedo, it was fired at the planet and in less than a moment after its impact on the planet's surface the entire world burned. The atmosphere of the planet was destroyed, purging all life on the planet. Of the population of seven billion, none survived.
This was broadcasted all over the galaxy, leading to the surrender of the rebelling forces and execution of all those involved. Information about the Reapers is released to the rest of the races in the galaxy leading to a panic. The Imperial Cult also spreads out into the galaxy.
Year 185: Reconstruction of the galaxy begins to take full force.
Year 186: The Quarian Home world is retaken from the Geth. The planetary invasion lasted only one week, having five Legions and two fleets deployed. The superior technology and numbers overwhelmed the Geth. The Turian Nihilus becomes the first Turian Inquisitor the steps of integration between the other races and humans takes a huge step forward.
Year 187: Negotiations begin on Tuchanka, the Krogan home world, with hopes of bringing the Krogan into the Empire. The Ordo Jedi lead the negations, with assistance from the Krogan Wrex. Offering to cure the genophage and unite the planet, in exchange for the Krogan becoming a part of the Imperium. The Krogan outrageously refused finding the offer to be insulting to Krogan culture. Future negations would end in the same results, the Krogan are slowly heading toward extinction.
Year 193: Reconstruction of the galaxy is complete. The Reaper Sovereign launches an attack on the Citadel catching the defending forces by complete surprise. The Sword of the Emperor is destroyed along with four Star Destroyers before the reaper was destroyed. (Sovereign caught the Super Star destroyer off guard so its shields were not up) Before Sovereign is destroyed he sends a message to the reapers detailing how some of the Imperium tech works. The galaxy gears up for another galactic war and military production enters an all-time high. While Imperial ships were larger and had more firepower than the reaper, Sovereign was able to quickly adapt his weapons to combat the Imperium ships. In the span of the battle his lasers go from barely able to damage the Super Star destroyer shields to doing massive damage in a single blast.
Year 194: In one of the most shocking events in recent history, Jedi Grandmaster John Revan Shepard marries Aria T'Loak the pirate 'queen' of Omega inadvertently securing an alliance between the Terminus systems and the Imperium. Their child is born a year later and is the first Asari Psyker to be born. Construction of the first Imperial Titans begins. Titans are colossal combat robot walkers armed to the teeth. The titan named the Emperor's wrath by completely would be over 150 meters tall.
Year 196: The Emperor's wrath's production is complete and was tested successfully. Production on several smaller titans begins. Across the galaxy millions of soldiers are being trained and hundreds of ships are being built in preparation of the Reaper War.
Year 198: Ion cannons are created and now equipped on all frigate class Star Destroyers. These weapons fire highly ionized plasma and were extremely effective at shutting down electronics on enemy ships.
Year 199: Contact with the eastern half of the Terminus systems is lost but before it was gone a message was able to be sent out warning the galaxy the reapers have arrived. The first response armada consisting of over 500 ships from the Imperium and 300 from the Terminus alliance go in first to secure a beach head.
When they arrived the fleet was met with over 35,000 reaper ships. In the battle the alliance was put on full retreat with 90% of the fleet being destroyed and two Primarchs being killed. The reapers managed to adapt their weapons to be able to damage Imperial shields drastically taking out nearly half of the shields power in a single blast. While they weren't able to do the same to their own shields, they had the numbers to overwhelm the response armada. During the battle around 1,200 reaper ships were destroyed. The Second Galactic War begins and an age of heroes on the battlefield begins.
Year 200: The entire eastern half of the galaxy falls to the reapers. While the complete mobilization the Imperium is mobilizing all of its forces, several smaller fleets attempt a desperate defense in order to buy time.
Year 201-202: The Imperium is fully mobilize and launches one of the largest offensives in history. Over 19,000 ships along with the new God Slayer class, a titanic 20 kilometer flagship of the Imperium and tens of billion soldiers and hundreds of million more clones all head into battle. It was do or die, should they fail all life in the galaxy would be wiped out.
During month 6 of year 202 the Primarch Lelouch's ship crash lands on an unknown planet called Halkeginia. Contact with him was lost for another month until a nearby fleet found his signal and came to the rescue. It turns out that the planet had its own weaker versions of Psykers called mages. Along with that a student on Terra, Saito Hiraga, who had been reported missing months earlier had been found on the planet he had somehow become a king of a small country called Tristan.
The Imperium uplifts and annexes Halkeginia and uses their water mages as support for the Imperial Guard, and used the genes from several high level water mages to create Maximus clones, this ends up saving countless soldiers' lives. As Psykers developing healing abilities was extremely rare. There were troubles in getting the planet to unite together but the Planet-Governor Henrietta was able to swiftly bring the planet in line with help from the Inquisition.
Year 208: The Second Galactic War comes to an end at the battle for Terra II. The galaxy is in flames, hundreds of billions are dead, 85% of the Imperium Navy has been destroyed and three Primarchs along with their Legions are dead the entire Terminus alliance has been destroyed their systems now falling under Imperial control. But the Reapers have been defeated and the galaxy is safe.
Year 209-235: The reconstruction of the galaxy begins and isn't completed for another 28 years but the galaxy is still feeling the effects of the war. The age of War has ended and an age of Enlightenment and peace begins. The Hyperdrive technology is given a drastic upgrade using new Imperium tech along with what they were able to salvage from the Reapers. The Hyperdrive is now capable of traveling to another galaxy at a massively faster rate. What would have taken over several years of travel now took several months with the right Hyperspace route planned.
On month 12 Imperial Year 235 the first colony ships leave the galaxy and head to the nearby Pegasus galaxy. Jedi Grandmaster Shepard dies of old age, and passes leadership to his daughter Seras, the first Asari to become a Jedi.
Year 237: Colonization of the Pegasus galaxy begins with no contact from any alien race. There are several scattered Human and Turian settlements in the galaxy for whatever reasons. The Super Lance Ultra anti-ship lasers are created and are now equipped on all new Imperium Super Star Destroyer class ships. A Super lance is basically an ultra-heavy super laser cannon capable of destroying an entire city in one blast.
Year 239: The Imperium navy has recovered 70% of the ships that were destroyed during the reaper war.
Year 240: Pegasus colonization is going smoothly until contact with a race called the Covenant is made. On month 4 an Imperial scout fleet makes contact with an empire controlling the entire west of the Pegasus galaxy. The Covenant declares the Imperium's existence heretical and declare war on the Imperium. They destroy the scout fleet and glass the nearby planet, Harvest, killing Primarch Lelouch's little sister who was vacationing on the planet.
In rage he declares Exterminatus on the Covenant gathering his entire Legion and several hundred other ships and head for the Pegasus galaxy.
Year 241: The short Imperium-Covenant war begins and ends. With every battle ending in the Imperium's overwhelming favor. With their Star Destroyers outnumbering and out matching any of the Covenant ships especially with new Super Star Destroyer's Lances being able to tear up a covenant ship in a single shot. Each battle ends with zero survivors on the Covenant side with minimum casualties on the Imperium side.
Seeing that the Covenant is heading to extinction against the Imperial forces the Sangheili rebel from the Covenant and defect to the Imperium offering the location of the Covenant home world in exchange for survival. Lelouch accepts on the conditions that the Sangheili become servants of the black knights. Seeing it was either that or extinction they accepted. The Imperium launches a massive attack destroying high charity the Covenant capital city/ mobile space station. Lelouch personally killed the Prophet of Truth ending the war. The remaining survivors over the course of the next few months were hunted down until all the races belonging to the covenant were exterminated. (And that is why you don't fuck with Lelouch's family… By the way not biological sister obviously)
Year 246: Recent improvements in gene modification make it possible for the average human to live to be over two hundred years old.
Year 248: The Imperial Navy has been rebuilt and the Milky Way galaxy has completely recovered from the Reaper War.
Years 249-260: With the galaxy rebuilt the Imperium focused on expanding in the Pegasus galaxy, along with expansion in two nearby galaxies bringing the total number of galaxies under Imperial control count to seven. The Emperor creates the second generation of Primarchs, five new Primarchs and Legions. Along with cloning technology being upgraded along with upgrades to the military gear that soldiers have access to, instead of using the cheap laser rifles soldiers now used the new E-19B Blaster rifle and its other variants. They also now wore the new Phase III battle armor. (Basically the Imperial Army turned into the storm troopers but unlike them the army can actually hit something with their weapons.) Several Turians have been reported to be born with Psyker abilities, coming from the human parent.
Year 261: Primarch Lelouch releases the Sangheili from their service of the Black Knights. While most went across the Imperium to find a new home, several families stayed in service to the Black Knights feeling that there is nothing else for them.
Year 274: Tollan, the first Turian Psyker becomes the first Turian to join the Sith program.
Years 278-305: Colonization of the Orillia, Othala, and the Ida Galaxies begins. The galaxies being relatively empty of life with the Othala having a dying race called the Eldar (not 40k Eldar similar but not them) inhabiting it. On Imperial Year 284 with a combination of Imperium, and Eldar technology the Eldar race was saved from extinction due to some type of virus affecting their birth rates. The Eldar union merge with the Divine Imperium; they were tasked with overseeing the Othala galaxy being built.
Between Imperial years 280-300 over twenty new noble houses were created. Control on how a planet is operated is handled by the planet governor who is elected once every 10 years, while control on how the system is handled is done by the local senate. The Governor is tasked with mainting order on the planet, raising a Planetary Defense Force, and other duties. The control of a galaxy falls under either the Primarch in charge of the galaxy or a senate of all the highest ranking nobles and planet Governors. Matters involving the Imperium as a whole is handled by the Emperor.
Year 304: Project mobile suit is begun but is abandoned at the end of the year. Reason stated to be that they are inferior to Titans.
Years 305-405: An age of peace and research occurs across the entire Imperium, no wars, nothing but peace for over a hundred years while the Imperium builds itself. Until Year 405 when the fallen Yuuzhan Vong race launch a massive galactic invasion of the Ida and Milky Way galaxy.
Years 406-410: The Imperial forces lazy from the age of peace are caught unprepared. After four years of warfare the Yuuzhan Vong were defeated, but the Imperial Military took massive causalities. Promising to never allow something like to ever occur again since the day the Yuuzhan Vong war ended the Imperium Military remained ever vigilant in their training.
Years 411-420: Reconstruction of the Vong War, along with the expansion of the Imperium Military.
Year 430: An artifact is found on a planet in the Orillia galaxy that has the ability to create stable black holes that can travel into other dimensions. Research into this new field of technology is begun.
Year 450: Research into creating a stable black hole with the artifact is complete along with the ability to recreate the artifact. Construction of a massive inter-dimension space station is begun in the Milky Way Galaxy the biggest space station ever built, with its size on completion to be estimated to be over 150 kilometers.
Year 486: Secret project codenamed T-Star is begun.
Year 489: Secret project codenamed S-forge is begun.
Year 490: Construction is completed and testing shows that it is able to create a stable wormhole big enough for a Super Star destroyer to pass.
Year 491: Primarch Lelouch, the Emperor's favorite son is given thirty ships and is tasked with exploring the alternative dimension and bringing it under Imperium control.
On month six a scout fleet arrived in the Agatha Galaxy, near the Orillia galaxy and made contact with a warrior race called the Mandelorians who take up most of that galaxy.
On month 12 Imperial Year 491, Primarch Lelouch with the Black Knights Legion and several other troops enter the dimension portal. They emerge and find Holy Terra under siege by an Alien Armada.
Back in the Divine Imperium the Mandelorian race declare war on the Imperium and invade the colonies in their galaxy, kicking the Imperium out of Agatha. They then launch a spear head attack on the Orillia Galaxy several weeks later.
The Age of Peace has ended and now it is time for a new Age of War.
AN:
And there's the timeline, what did you think?
A quick note on AI technology. While not Illegal in the Imperium it is heavily frowned a pond (by the Quarians but the rest of the Imperium does not give a fuck mostly) . Limited AI technology, AIs that are limited into one field and un capable of deviating from their task is commonly seen in factories, probes used to map the universe for hyperspace routes, and military vessels. You will never see an AI on a Quarian vessel.
True AIs like the ones in Halo for example are extremely rare and have shackles that limit their capabilites. They are typically seen outside of the Milky Way Galaxy.
The Stargate world will be season 1 AU, details on the next chapter. But basically the Goa'uld take the SGC more seriously as the SGC has one of the system lords assassinated, at the beginning and launch a large invasion of Earth.