In 2151, as the first anxious settlers made their way through the new Charon mass relay, many of them wondered whether the reality of life on Eden Prime could possibly live up to the stories of pristine landscapes that drew them there. What the colonists found exceeded their expectations--the stable climate and compatible biology made the colony almost instantly viable.
Over the next few decades, several million humans immigrated to Eden Prime and a primarily agrarian culture developed. The new colony quickly became not only self-sufficient, but began exporting goods. Chief among these were rare plants grown from Earth's many heritage seed libraries.
But in 2183, the colonists faced a true test of their character: Eden Prime was attacked by the rogue Spectre Saren Arterius and his geth allies. Not long after, the Citadel was attacked by those same forces and Eden Prime's neighboring world Terra Nova found itself threatened with complete destruction. Faced with such violence, a lesser citizenry might have retreated back to the safety of Earth, as so many colonists of Terra Nova did. But Eden Prime's governing body refused to give in. Not only did the colonists vote overwhelmingly to block a measure calling for the building of evacuation ships, they voted to ease restrictions on emigrants from Terra Nova looking for a new home. As a result, Eden Prime's population has swelled; whatever the war might bring, its status as a symbol of humanity's future in the stars remains unblemished.