What conditions existed in river valleys that encouraged the development of the first civilizations?

How did americans disagree over the role of federal and state goverment before and durning the civil war

The religious scholar believes that the universe is so complex that it could not be created and directed by a signal god. which of these religions would best reflect the scholars beliefs

What are some differences between mccarthy’s “west virginia speech” and his “letter to president truman”? what are some similarities?