A/N: I played with numbers, made some events last longer and made them be earlier in time. I also made it to where the Forerunners completely died off.
THE CREATION OF THE UNIVERSE
In the Beginning, there was The One. Seeking to fill his empty Universe with Life, he Created the Allspark and two Brothers; Order and Chaos, Creation and Destruction, Primus and Unicron. They were tasked with peopling the universe. Unicron, jealous of Primus's ability to simply sit back and create at his leisure; challenged his brother, where if he won he would get the power of creation.
The First Battle was long, and lasted millennia. Entire Galaxies were consumed, until Primus fled to a large spiral galaxy with four small satellites. Sensing how much potential this galaxy had, Primus decided to make a final stand. Using the metal of an entire solar system, he created The Thirteen; The First Primes: Prima, the Leader; Vector Prime, Guardian of Time and Space; Megatronus Prime, The Fallen; Nexus Prime, First of the Combiners; Micronus Prime, Progenitor of the Mini-Cons; Liege Maximo, the Schemer; Solus Prime, she of the Golden Forge; Epistemus Prime; the Intellectual; Autonomus Maximus, the wordless Sentinal; Solomus Prime, the Gentle Spark; Onyx Prime, Guardian of Organics; Alchemist Prime, the Chemist; and Alpha Trion, the Archivist. With the help of his creations, Primus finally defeated Unicron, and banished him to one of the outer satellites of the galaxy. Weary from battle, Primus changed himself into a metal planet, embedded the Allspark into his very spark chamber, bestowed upon Prima the Matrix of Leadership, and allowed his children free reign on his surface.
Left adrift in space, Unicron was tekan pity upon by The One, who reformed him into a planet as well, then filled that planet and the moon it later captured with life. While Primus's children saw fit to guard the Allspark and advance in sciences both practical and less so, the Children of Chaos, or as they were later called, the Precursors, chose instead to travel the galaxy and seed life, hoping to pass on the mantle of Guard of Unicron. They tested a group known as the Forerunners, but the warmongering species failed. Angry, the Forerunners rose up and did battle against the Precursors, sending them fleeing back to Unicron's body, a broken civilization.
As The Forerunners pursued, the Precursors' original choice, Humanity, advanced in technology and discovered space, and eventually, allied with the San'Shyuum. As this alliance was beginning, Precursors continued fleeing the Forerunners, some of them turning their bodies into to powder to be revived later. These powdered Precursors are found by Humans and San'Shyuum, and eventually reform into the Galaxy's greatest threat: The Flood.
The Flood took revenge against the Forerunners, causing them to activate the Halo Array and thus destroy the entire galaxy of sentient, organic life. The Thirteen Primes had seen this coming, for they were all children of destruction, and had a plan. The Librarian, a Forerunner, had taken samples of all sentient and pre-sentient life, and stored them on The Ark. The Primes went and reengineered the life forms, as well as creating new non-sentient life, and reseeded life on any and every planet that could hold it; attempting to put as many species back on their home-worlds as possible. Two species' home-worlds had been destroyed in battles, however: Humans and Forerunners. Deciding that since the Forerunners' arrogance was what caused the whole mess, the Forerunners were not reseeded elsewhere, and were placed into storage instead; while humanity, the true inheritors of the Mantle, were spread across the whole galaxy, with a genetic strain that was especially war-like kept close to Cybertron, as Primus had come to be called, for further study. Unicron's body was left bereft of life, but it had shielded its moon from the blast and so was left alone.
Before the study of Humanity could begin, though, tragedy struck. Megatronus Prime, suspicious of his brother Liege Maximo, confronted Prima about his suspicions. Prima did not believe Megatronus, saying that he was getting paranoid because of all of the unrest in the galaxy, continuing on to say that his Dark Energon armor may be poisoning him. Maximo, worried that Megatronus may be on to him, accelerated his plans to kill Prima and steal the Matrix of Leadership for himself. Megatronus found out, and in the ensuing battle, killed Maximo. Feeling guilt over the death of his brother, Megatronus confronted Alpha Trion and forced him to falsify the events. The Record was made to show that Megatronus, in a jealous rage over Solus, one of the only female Primes, killed Maximo and then fled. His name was stricken from the record, and other than Solus telling tales of him to the later Cybertronians, Megatronus was forevermore referred to as The Fallen.
Millions of years passed, and genetic mutation occured in a large percentage of the galaxy; which was caused by their genetic material coming into contact with the Primes. A small portion of the population began exhibiting some of the most notable abilities of the Primes, such as levitating objects, seeing without seeing, predicting the future, intuitive instincts, and either great affinity rage or to compassion. Not knowing what the power these beings used was called, the galaxy came to know it as The Force.
The Force has a Light Side, and a Dark Side; and like Primus and Unicron, neither side could best the other. That is, until an up-and-coming Dark Side wielder, known only as Bane, conspired against the Dark Council and had them and an entire planet killed by a self destructive technique called the Thought Bomb. Enacting his new rule, the Rule of Two, Darth Bane and his Sith apprentice disappeared from Jedi Records. The Old Republic survived thus until a great uprising, orchestrated by the new Dark Lord, Darth Sidious, caused a Civil War. This War's battles caught the attention of a newly victorious United Earth Government and the Swords of Sanghelios, who reached out to the Republic to request assistance in exterminating the Covenant and in return would commit forces in the defense of the Republics interests.
Before any of this had begun, however, Unrest had begun on Cybertron. Of the Original Thirteen Primes, Twelve were either dead or missing. Only Alpha Trion remained, dutifully archiving the full history of the entire universe. He'd been around for most of it after all. The High Council, elected into government when Sentinal Prime had gone missing in the core of Cybertron, had set into place a caste system: The Prime, should he return; followed by The Council, The Seeker Aristocracy, The Military, The Proletariat, The Laborers, and finally, at the bottom were the Indentured Servants, Slaves, and Gladiators.
One such Gladiator, a slave by the moniker of D-146, rose in the ranks until he was nearly undefeated. One day, on his allotted time outside of the pits, he saw a medium sized mech being mugged in an alley. He sprung into action and saved the young mech. Revealing himself to be an apprentice archivist by the name of Orion Pax, D-146 asked if Orion would accompany him daily to the Hall of Records in Iacon. In return, D-146 promised to teach Orion how to defend himself. Pax agreed.
They met as such, learning history, politics, stances, martial arts, weapons use, mathematics, literature, and a personal favorite to both of them: sword play. They met new friends too, an up-and-coming surgeon named Ratchet, an Enforcer named Ariel, and a computer technician and electronic musician called Soundwave. Eventually, in one of their History lessons, Orion taught D-146 about the Legend of the Fallen. Enjoying the sound of the former's name, he renamed himself Megatronus, the name striking fear into the hearts of most of his opponents, earning him victories nearly before fights began. Eventually he took his name and friends into the political arena. There, he revealed his true colors; he wanted to abolish the Caste system and the Council with it. He demanded to be made the new Prime so he could rule over Cybertron with an iron fist.
Orion was appalled, and used his own political knowledge to refute every ounce of flawed logic Megatronus used in his speech. Enraged at his first friend's betrayal, he fled, followed by Soundwave. Recruiting the majority of the Military and the Seeker Aristocracy, he declaredwar against the Council and all who stood by them. Many Cybertronians fled to the outer moons, while others stood to fight, Orion among them. Due to his close teachings with the newly dubbed Megatron, he was the only one who stood even a remote chance of defeating him. Eventually, Orion went to the Core to ask Primus for guidance, but when he arrived he found Sentinal Prime waiting for him. Weak from Energon deprivation, the Prime asked him if he felt he was worthy of taking the Matrix of Leadership. At Orion's staunch refusal, Sentinal Prime smiled softly and died. The Matrix, as it always had, sensed the presence of the next Prime, and bestowed itself to Orion Pax, who became Optimus Prime.
Later in the War, as Allied cities fell left and right, Optimus Prime allowed for the radical plan of a small strike team escaping the now blockaded Cybertron in search of new allies to hold back the tide of Megatron's Decepticons. The mission failed, however; withtwo of the three planes being unable to escape the atmosphere and the third being shot into a stasis lock, set adrift amongst the stars.