The Wilmot proviso called for what?

hope this helps :)

Explanation:

The Wilmot Proviso was a failed attempt to ban slavery in territories acquired in Mexican- American War.

the answer that best explains what happened to george washington at fort necessity, pennsylvania is : washington was attacked by the french but was able to negotiate with them to peacefully end fighting. the battle took place on july 3, 1754. the battle is considered as being the start of the french and indian war.

it granted civil rights to african americans.