Which line best supports the writers opinion that Kamen has done things that have never been done before?

What effect did john hay’s open door policy letters have on the imperial powers of britain, france, germany, russia, and japan? a. it provoked the imperial powers to declare war on the united states. b. it caused the imperial powers to restrict trade in their trade with china. c. it warned the imperial powers that the united states would soon declare war on china. d. it signaled to those powers that the united states would take a larger role in world affairs than before.

What cultural factors do geographers consider when they study human geography? climate patterns customs elevations ethnicity language religion

How did roman authorities treat conquered peoples? required them to pay taxes to rome replaced their local governments compelled them to adopt roman customs invited them to become roman citizens