Which genre explains the origin of a world or a people writing?

Genres of literature are important to learn about. The two main categories separating the different genres of literature are fiction and nonfiction. There are several genres of literature that fall under the nonfiction category. Nonfiction sits in direct opposition to fiction. The genre in question would be Historical Fiction.

Yes you are cute answer theories to explain the colonization of the new world the last great habitable landmass to be occupied by humans focus on the bering land bridge, or beringia, which emerge by siberia and alaska the last ice age.