For me:

10,000s of Jedi battle 10,000s of Sith. The Republic is born out of the war and one of its few survivors; Master Yoda, decides to maintain a small knighthood, as he learnt too many Jedi Knights turned to the dark side and the slaughter wasn’t worth the amount of death.
2.
Obi-Wan Kenobi discovers corruption in the Republic and is forced into hiding.
3.
Two senators seek Obi-Wan Kenobi in the hope he can help save the Republic from the corruption, and in doing re-discovers the existence of the Sith and a promising new apprentice.
4.
The Galactic Empire rises.
5.
The Republic falls.
6.
A rebellion is born and manages to steal the death star plans.
7.Despite the odds, the Rebellion destroys the empire.
8. A criminal Militia rises
9.The militia fails and a new republic is born