Originally posted by Avl521:
We know the bible is written by templars, and they left information out on purpose.
From the beginning of the games we see that the templars control most institutions in the AC world, everywhere from state, to companies to the church as portrayed by the cross being their symbol and the fact they have infiltrated the church already.
We know templars control history, so what people know is based on what templars want them to know.
In the AC universe, NOTHING says Adam and Eve had children together, the only thing we know is that they were the first to escape the control of TWCB, most likely meaning through that that they were the first "children of two worlds".
We can see in the truth video, that there are more humans, so we can't know for sure if Cain and Abel are sons of both Adam and Eve.
If anything, we know that Altaïr, Ezio and Desmond AND Subject 16, are related or are descendants of Adam. Why Adam and not Eve you say? well, the fact we have to find Eve, is like finding the other half of the puzzle.
If we were descendants of Eve, we would have been told by Juno to find a descendant of Adam, obviously a woman for Desmond to have a Demigod with her. Since we're asked to find Eve, we can safely assume our half of the DNA is that of Adam.