Where did the highest concentration of cities in mesopotamia emerge?

What happened as the result of a conflict between british troops and a colonial militia in massachusetts

The largest formal unit of geologic time is

Why did poland, hungary, and east germany join the warsaw pact? a)their people voted to join in free elections. b)their efforts to join nato failed. c)they wanted to stop the spread of communism in europe. d)they were soviet satellites that had little choice.