The Jim Crow Laws prohibited certain things that made blacks equal to whites to keep blacks as second class citizens. One of the laws being that a black man could not eat in the same place where a white man was eating, so they made white & colored entries for many businesses, seen below. Black & white establishments varied. Black establishments were cheap, diplidated, and had worse services, such as a black school teaching less, and thus, giving blacks a worse life than whites by keeping them from jobs.
Certain things that were thought to be equality were not allowed. Some of these things that were prohibited were a black man shaking hands with a white. A black man was not allowed to touch a white woman because it would be rape. If a vehicle was driven by a white man, a black man would have to sit at the back. If a black man did not follow these rules, he would be antagonized and the black man was lynched, which means given a punishment without trial.
The great depression
The great depression was a era in which the stock market crashed, hitting the economy hard. The characters in Roll of Thunder are affected by the depression because they live in a cotton farm, and in 1918-1928 the price of cotton fell. A three year drought also happened in 1925, so grown goods could not be mass produced as much and farmers turned to irrigation. A bug called the boil weevil destroyed crops, further destroying the production of cotton. These reasons are the reasons many left agriculture, many moving to other places. Although white people had it bad, blacks somehow had it even harder, many being forced off their land by declining prices. Although some kept their farms, others were forced into menial jobs.