War of Unification

The War of Unification was a conflict involving members of the Isu, the First Civilization, that started at some point prior to the year 1923 of the Isu Era. The conflict saw the creation of the Swords of Eden with the purpose of ending the war, though this resulted in numerous deaths. In response, the scientist Consus created the Shrouds of Eden to heal casualties of war.

Reference

 * Assassin's Creed: Syndicate