Why did europeans see africans as a better source of labor than the native americans?

How did the us change it’s economy to provide supplies for the war effort?

Was sharecropping a good way to survive

Which of the following is not true about isaac stevens, the first territorial governor of washngton a he was friends with the president franklin pierce b he graduated first in his class at west point academy che served in the mexican-american war he reluctantly accepted the job as governor