Why did Earth form into seperate layers?

What did factory managers expect women to do when men returned home from the war?

How and why did the policies of the federal and state governments toward native american people change between 1790 and the 1850s. what were the reaction of native american people to these policies?

The clergy comprised the wealthy first estate with members of noble descent in particular having a great deal of power.what was the source of the clergy’s wealth