During the Jim Crow era there was the Ku Klux Klan who were an anti-black and very racist towards any race organization. This organization is still around today, but they don't kill people like they did first around. They were white supremacists and wanted to get rid of every other race in America. They did this through assassinations, bombings, kidnappings, killings and many other ways to get rid of someone. They have been a major threat to society and are still around today but aren't as bad. With all of these activities they scared blacks and made other white supremacist happy.
This photo of two black men getting lynched this was a popular site in the south when slaves got freed. During this time whenever a white person thought that a black person did something wrong they would go to jail, but then it would most likely go to the jail and break out the black that was in there to kill him. This was very corrupt and caused many innocent black people to die without a trial and cause protest and riots for what happened to these blacks. And there was thousands of blacks who were killed in this manner even though they didn't do anything wrong.
This is the 15th Amendment that is also called the Black Voting Rights Act that allowed all blacks to vote after people made Grandfather laws and other laws to prevent blacks from voting. The Grandfather Law said that if you are a black you can only vote if your grandfather could vote which most blacks grandfathers couldn't because they were slaves and slaves couldn't vote. Also, people would rig the elections by putting in fake vote for the white officials to get voted in and not the black candidates.
This sign shows one of the ways that people were separated they had to go to different bathrooms because they were different races. There's also many other examples like this where blacks wanting to one side of the restaurant and white one into the other. Most likely the blacks would get worse service on their side of the restaurant and it might cost more just because they were black. Next there was also water fountains like this where blacks could only go to one and white can only go to the other and there might be more white water fountains and black water fountains.
The site above shows some of the laws that Jim Crow era came up with. Laws were designed to put back blacks and make it harder for them to succeed in the society that there was at the time. Whites did this to prevent blacks from doing many things that would try to make them better and allow them to help out society. But whites didn't want blacks to not just succeed but to leave their town because they were originally white town. Next, the laws were aimed to get rid of everything blacks had done to try and be equals like being at the same school because lights didn't want blacks to be getting the same education and has their sons and daughters and there is even laws from having barbers do certain races hairs because blacks were allowed to touch white woman