Actually, all of them are correct. All may be selected:
African Americas, Christians, Jewish, Immigrants and Organized Labours.
Hope it helped!
if memory serves me, it was a border dispute with Mexico over the Texas territory. The Mexicans attacked an American patrol and that was the start of the conflict. But also idk and I could be wrong.
They did not get along that we'll so they had half of the land they wanted
EMpires used trade for all sorts of reasons a few were to get and sell goods. Another was to exchange information and news. This also connected people far and wide from the main part of the empire. It was easier to rule empires when trade was established
imagine you are a king/queen and its time for you to step down as reining monarch, your mother and father are your predecesors and therefore your son or daughter would be heir, normally its the first born child
