How can a person be somber and an optimist

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?

What was one of the causes of war war two what was one of the causes of the war of 1812

Limiting contact with foreigners was the main goal of chinese. true or false