Within Revenge of the Sith, Order 66 was a secret order Palpatine, a.k.a. When the Kaminoan scientists created the Grand Army of the Republic on the planet of Kamino, they programmed all of the clones to follow 150 contingency protocols, including Order 66. Featured in Episode III and more recently in Disney+’s animated series Star Wars: The Clone Wars, Senator Palpatine ’s grim order, also known as “Clone Protocol 66”, is infamous as demanding the purge of the Jedi from the galaxy in Star Wars canon, but what significance, if any, does the number represent? While there doesn’t appear to be any official meaning behind the name Order 66, there are many fan theories that propose alternative reasons why the number 66 was chosen for the order. The inspiration for the name of Star Wars: Episode III- Revenge of the Sith 's Order 66 could be historical or demonic.