What are some US immigration events in 1850-1900?

please list 3

Which statement best describes the response by the united states and its allies to the berlin blockade? planes dropped tons of supplies around the city each day. trucks smuggled tons of supplies into berlin about once a week. tons of supplies were delivered to west berlin by boats. tons of supplies were purchased from east berlin each day.

Conflict resolution can be difficult. which of these is the best example of how the us congress resolves conflict instead of always using a majority vote?

What explains the political difference among african americans politicians during reconstruction