It was given to the US as part of the 1819 Adams-Oniś Treaty
As an intimidation tactic.
Think about it:
If black kids are beaten up for going to school, will they even want to go to school?
If a black man was going to go vote, but the night before, the local sheriff came by and told him he'd "cause trouble" for him and his family if he votes, will he still want to vote?
Basically, violence was used to scare black people into obeying.
Answer: prevent decisions based on the pressures of maintaining elected office
Explanation: The Supreme court is the judicial branch of the federal government and the highest court in the country. It has jurisdiction over all federal & state courts. The
main purpose of the Supreme court is to interpret the law and defend the Constitution. Often they must hear the cases of lower federal courts and ensure that laws follow the Constitution.
Supreme Court justices have life tenure, which means that they serve until they die, resign or retire, unless they are impeached and removed from office by the Senate for wrongful behaviour. The purpose of this life tenure is to make certain the highest court of the country decide cases based on merit, and not have to worry about the pressure associated with elected office.
Time is the most beneficial- watch this video to learn why. https://www.youtube.com/watch?v=RRWggYusSds