Great ReSynchronization

The Great Resynchronization occured in 35 BBY as a method of the Republic Measures and Standards Bureau to recalibrate the disparate dating systems used by the Galactic Republic. It was since used as a zero year for the dating system; thus, the Battle of Geonosis takes place in the year 13, Battle of Yavin in the year 35, and the Battle of Endor in the year 39. The Battle of Ruusan occured in the year -964.

Links

 * Holonet News: RM&S Debates Calendar Reform