Treaty of Coruscant

The Treaty of Coruscant was the peace treaty that brought an end to the Great Galactic War in 3,653 BBY. The Galactic Republic was strongarmed into the treaty following a crippling stalemate in the war against the Sith Empire. While representatives of both factions met on Alderaan to discuss the terms of peace, the Sith Empire launched an unexpected assault on the Republic capital world of Coruscant.

Following the Sacking of Coruscant, the victorious Empire forced the Republic into a highly disadvantageous agreement. The Treaty forced the Republic to withdraw their troops and Jedi forces and abandon many long-time allies and outlying systems to their enemy. The resulting Cold War allowed the Sith time to consolidate their growing power. Despite this, factions of the Republic refused to recongnize the Treaty of Coruscant and continued to battle the Sith Empire for years after the official conclusion of the Great Galactic War.

The counting of years in SWTOR is related to this treaty by numbering the years After the Treaty of Coruscant or just ATC. The treaty itself occurred in the year ATC/BTC 0.