Answer:
Because fort Sumter allowed the confederates to create a valuable hole in the union
Explanation:
Mostly they affected it through their imperialism. They would colonize and take over countries for resources, and with them they would bring their technologies and things that they needed. After they left these things stayed, things like telephone and telegram lines and similar things. Culturally, they would mostly disregard the local culture and impose their own which would often be accepted and kept by the locals, but often there was also warfare.
Answer
eventually returned to their home countries
Explanation
Many new immigrants entered in the US in the late 1800 in large numbers and most of them were from western and northern Europe. They fled to US because there was job shortage in their country and also crops farming failed due to their land being infertile and famine.There was also high taxation in their countries. Others were moving to US to seek for freedom due to the political and religion persecution. Many immigrants eventually returned to their home countries this is because in their mind they didn't come for a permanent stay.
The WPA created jobs for the unemployed.
The Works Progress Administration was established in 1935, under the Franklin D. Roosevelt administration.
The WPA did employ artists and musicians and actors and such, but the WPA was only for American citizens, as the country worked to fight its way out of the Great Depression.
People weren't paid to remain unemployed. Rather, the government created projects for which they hired persons to do work.
WPA projects included some building of roads, bridges and other public projects, but the national interstate highway system was something done later in US history, under the Eisenhower administration.
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It was important because segregation and discrimination had reached a point were it was no longer tolerable To state that African Americans should join the war because a win would be a double victory over racism abroad and at home.