B. 1710
You may not think it to look at him how, but this man was once the Mentor of a powerful branch of the Assassins—the Colonial Brotherhood.
Achilles' life before he was an Assassin isn't well documented—it seems that most of the records were destroyed when the Templars nearly wiped out the order in 1763.
From what I do have, Achilles was recruited in the mid-1730s and became a Mentor in 1746. He had a gift for both recruitment and organization, so before long was head of a crew of Assassins that spanned the colonies and much of the frontier. Achilles strengthened the ties between the order and the nations of the Iroquois confederacy, particularly the Kanien'kehá:ka, though as far as our records show, Connor is the first Native American to actually become an Assassin.