Black Rebellion

The Black Rebellion was a signifcant Rebellion in the history of the Code Geass universe. it changed the minds of Britannian thinking and affect the world.

Beginning
The Black Rebellion was "started" roughly in 2004 a.t.b. when Lelouch Vi Britannia declared that he would destroy the Holy Empire of Britannia. 13 years later he would have a chance at this goal with the meeting of C.C. who would give him the power of Geass. With it he would defeat Britannia at the Skirmish in Shinjuku Ghetto. After the battle he would reconnect with the Rebels led by a man named Ougi. However he would meet them under the Mask of Zero, The "Mastermind" behind the skirmish, the Rebellion would Begin

Phenomenon
The Rebels led by Zero would attack Britannia openly for another few weeks until the Japanese Liberation Front Hotel Incident where he would reveal the Black Knights, a group of men and women who would fight for justice and against the strong. To the Japanese Zero was a hero their "Knight in Shining Armor" with the Black Knights and openly fight against Britannia and local community problems (Refrain Drug pin Bust). The Japanese and other Area citizens think differently about the power Britannia had. Britannia however still stayed adamantly arrogant against the Black Knight Potential. This was up until the Saitama Ghetto Ambush and Battle of Narita where the Black Knights made two attempts on Cornelia Li Britannia's life and destroyed more than 20 Knightmare Frames and Britannian soldiers. the Black Knights were then noticed by Britannian higher ups and the main target of destruction for Cornelia besides the Japan Liberation Front.

The Rebellion
After JLFs destruction and attempts on Lancelot's Theft along with Schneizel El Britannia's life. The Black Knights became a "small threat" with Rebel Pockets joining them their numbers increased. But they took no actions to truly liberate Japan up until the Special Administrative Zone Massacre where many people were outraged and rebelled against Britannian Rule and attacked ultimately they failed but sent a message to Britannia that both suprised and scared them.

Legacy
Many things were done to attempt to prevent anything similar to the such catastrophes from happening again  such as building better knightmare frames, cleaning up the remaining rebels, letting Knights of Rounds watch over the area and use their skill to defeat Knightmare novices , along with better trained soldiers and stricter watch. However these would prove to not fully solve the problems of the first rebellion as Zero would change tactics and exploit other flaws in the military leading to the Britannian UFN/Black Knight War.