What is the exact time period of EoTE

LORDs_diakonos said:

The Beginner Box adventure takes place in the wake of the Battle of Yavin (it mentions the destruction of Alderaan and the Death Star), but the material in the game is general enough that you could set an EotE anywhere from ten years before the Battle of Yavin (where there really isn't a Rebel Alliance yet) to about the time frame of Return of the Jedi (when the Emperor and Vader are killed and the Empire loses a lot of it's high-ranking naval brass).