A: because blacks, even though being free, were still treated like slaves and some were even put into sharecropping to ensure they stayed poor
With the influx of people to urban centers came the increasingly obvious problem of city layouts. The crowded streets which were, in some cases, the same paths as had been "naturally selected" by wandering cows in the past were barely passing for the streets of a quarter million commuters. In 1853, Napoleon III named Georges Haussmann "prefect of the Seine," and put him in charge of redeveloping Paris' woefully inadequate infrastructure (Kagan, The Western Heritage Vol. II, pp. 564-565). This was the first and biggest example of city planning to fulfill industrial needs that existed in Western Europe. Paris' narrow alleys and apparently random placement of intersections were transformed into wide streets and curving turnabouts that freed up congestion and aided in public transportation for the scientists and workers of the time. Man was no longer dependent on the natural layout of cities; form was beginning to follow function. Suburbs, for example, were springing up around major cities
The Great Depression was an economic downfall that forced many families into poverty. In October of 1928, there was a major stock market crash which fueled the beginning of the depression.
There are many differences in beliefs between the two parties,, but the main two are the following:
Democratic:
Supports programs to help immigrants gain citizenship (against the wall and ICE)
Believes that less money should be put into the military and more into education
Republican:
Against immigration,, even if against immigrants who have no criminal record (supports the wall and ICE)
Believes that there's enough money being put into education and more should be put into the military
there are more differences if you happen to need more,, but those are some of two main ones that are being fought about today. other big ones that are fought about are abortion, taxes, gay marriage,, and gun control,, and if you need any information about the beliefs between the parties on those topics let me know and ill gladly help you out with that.
let me know if you have any further questions
:)