Which accomplishment of some early american civilizations indicates that they had knowledge of astronomy?

Which landmark supreme court case ruled that segregation by race in public education was unconstitutional? a. miranda v. arizona b. plessy v. ferguson c. brown v. board of education of topeka d. alexander v. holmes county board of education

Four score and seven years ago our fathers brought forth on this continent a new nation, conceived in liberty, and dedicated to the proposition that all men are created equal. —"the gettysburg address," abraham lincoln which quotation correctly uses an ellipsis to shorten lincoln’s words?

How does fortas defend the majority decision that free speech in school is constitutionally protected