User blog comment:Master Sima Yi/Assassinews 08-10-'13 — Freedom Cry trailer released/@comment-4999424-20131008195859/@comment-4999424-20131009092635

What we know:

- We know he was born a slave.

What shown:

- His life as slave with what most likely is his mother.

- Beeing sold.

- Later life as slave.

- How he escaped and escaping.

- His life after as an assassin after working with Edward Kenway 15 years later.

What we know is canon:

- He was a slave.

- His life as an assassin 15 after ACIVBF where he crashed his ship in Saint-Domingue.