What ares some important facts about the harlem renaissances

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.

How did german physicist werner heisenberg's uncertainty principle shake beliefs in newtonian physics?

African-american soldiers in world war ii sometimes felt they were fighting for two victories, one abroad and one in europe true or false