Order 66

Order 66
Timeframe	End of Clone Wars; beginning of Great Jedi Purge
Date	19 BBY; 1,089 days after the First Battle of Geonosis (c. 2100 hours)
Place	A large number of planets throuhght the galaxy
Outcome	Near-annihilation of the Jedi Order
Affiliations involved	Galactic Republic Jedi Order
Participants	Sith Darth Sidious Grand Army of the Republic Clone troopers Jedi Order Grand Master Masters Knights Padawans Initiates

[Source]

Order 66 was when the Clone troopers killed the Jedi under Emperor Palpatine's order. The Jedi deserved this as they have committed genocides on innocents, abducted children, started wars and many more evil things in the Clone Wars.

Trivia

• People who feel bad for the Jedi after they did so many evil acts like committing genocides on innocents, abducted children and many more evil things are clearly braindead.