2070 : space travel is made very common the moon becomes covered in settlements the unca is formed

2074-2095: the sol system is fully colonised research begins on faster than light travel

2115: the interplanetary wars begin

2116: Unsc formed

2118: interplanetary wars end

2132: slipspace drive invented

2132-2400: UEG (united earth government) expands to 1200 worlds expansion halted as unsc will be too thinly stretched an protection concerns override expansionism

2494 : start of insurrection

2517: out of 500 candidates 400 survive process and are suited to combat the spatan 2 are born

mjolnir armor given to these candidates have shields that were reverse engineered from an alien vessel which is a covenant vessel the unsc has not figured out how to make shielding on a large scale to be mounted on ships but progress is being made

2525: first contact is made with the covenant at harvest, after some time contact with harvest is lost, a single ship is sent to check what has happened but it contact with it is lost prompting the unsc to send battlegroup x ray commanded by vice admiral preston. j cole who wins after losing 13 ships to 1 covenant ship

2526: spartan 2 supersoldiers are able to capture a covenant warship and send it to be studied

2531: harvest is retaken and events of halo wars 1 transpire the arbiter ripa 'moramee is killed by john forge the ships slipspace drive is used to destroy

a fleet of forrunner ships the covenant had captured and the flood infection on the world

the spirit of fire is left adrift through space

2532-2550: the unsc wages a guerilla war while 80 percent of human population withdrawn to the inner colonies human vessels outfitted with energy shielding the RESTUTITOR defense grid is set up with 350 Smac over earth 80 over mars and 20 over venus all acompanied by various defense stations repair facilites and 2500 of the unsc' s most advanced warships the guerilla war is waged by 2 fleets led by cole (who survived the battle of psi serpentis) each numbering 850 most of which are armed with energy shields the NOVA bomb project is completed and is used on a covenant world with devestating results the planet is turned into an asteroid field The AI cortana is created

the defenses of Planet Reach have been improved with 100 odps and 800 shielded ships

2551: Reach is discovered by the covenant by attaching a tracker to a human vessel the tracker is discovered and the unsc braces for the covenant attack a vast covenant armada over 1000 ships strong attacks reach against all odds reach holds

but a covenant ship makes a jump away from the inner colonies and is chased by a group of 15 ships lead by the pillar of autumn, the events of alpha halo transpire. After returning, having lost 3 ships and captured a covenant ship the master chief alongside 10 spartan 2s destroy the unyielding hierophant and a fleet of 500 ships meant for the invasion of earth noble team survives

2552: a small fleet of the prophet of regret jump into the sol system and is quickly slaughtered by the RESTUTITOR defense grid but the prophets ship gets through. the events of delta halo transpire and the great schism breaks out

the covenant war is over 30 billion humans have been killed and many planets glassed an alliance with sanghellios lead by the arbiter thel 'vadam is made

2552-2568: the remaining covenant splinters are destroyed with the exeption of the storm covenant lead by jul 'mdama a massive array of sensors has been created across the 1500 worlds under the UEG the unsc infinity is constructed

2569: the unsc thunder under captain holland has been thrown into andromeda by a space time distortion the sources of which are unknown

2670: the unsc is sending out search parties in search of the thunder