What role did the slave trade play with Global Contact?

What does the author most likely say the time for negotiating with britain was over

During wwi, literacy tests were used to control immigration, which marked a return of what type of ideology in some americans?

It can be inferred that the dramatic increase in defense spending by germany was the result of. (a) attempts by great britain to take german colonies. ( b) fear of a two-front war against france and russia (c) the need to put down a communist rebellion (d) a competition with the allies to produce atomic weapons