BBY/ABY is used to position items along the Star Wars Timeline. BBY refers to Before the Battle of Yavin. ABY refers to After the Battle of Yavin. The Battle of Yavin in Episode IV: A New Hope occured in 0 BBY/ABY.
As the Clone Wars continue to rock the Star Wars universe, the Republic's forces, led by the Jedi, find themselves drawn ever-deeper into Darth Sidious' evil web. With stories covering all aspects of the Clone Wars - from the trials of the revered Jedi Master Yoda, to the tribulations of the lowliest Clone Troopers fighting on the front lines, to the wicked machinations of the dreaded Count Dooku and General Grievous - these fast-paced tales feature a unique look into the world of Star Wars and at the events that shook the galaxy far, far away...