In a week you could read two books or see four movies. the opportunity cost of choosing to read one book is

The ancient greek city-state of sparta was run as an oilgarchy, meaning

To what extent did mary lease's concepts of justice, freedom, and equality agree with those of samuel gompers and emilio aguinaldo? how did they compare with those of the pinkertons at homestead?

Which piece of information would most a historian create an interpretation of this photograph of works in a factory?