How did many Greek city-states respond to the constant threat of Persian attacks by Xerxes?

2. what was the estimated population of ancient copán? of ancient tikal?

What was the primary concern for the missouri statehood question

Supporters of using the atomic bomb at the end of world war ii believed that a japan might win the war if the bomb was not used. b americans were tired of war and the us should end it quickly. c russia was developing a bomb and the us needed to use it first. d japan was developing a bomb and the us needed to use it first.