How did the obligations of serfs differ from those of lords and knights?

In the gettysburg address, which rhetorical device does abraham lincoln employ when he says, "the world will little note, nor remember what we say here, but ic never forget what they did here"?

Why were civil rights supporters disappointed with the supreme court’s 1896 decision in plessy v. ferguson?

Ineed this now complete the paragraph about social darwinism. social darwinism to justify by suggesting that it is natural and acceptable for powerful and wealthy nations to colonize regions that are less powerful. used this theory to justify the practice of political, economic, and cultural colonialism.