They had many different types of laws then we do today.
The groups that lived in the Great Plains were very diverse. Some of them farmed and others moved around following bison herds. Groups were so diverse that they developed a sign language for communication when trading or negotiating terms.
Board of Education of Topeka, 347 U.S. 483 (1954), was a landmark decision of the U.S. Supreme Court in which the Court ruled that U.S. state laws establishing racial segregation in public schools are unconstitutional, even if the segregated schools are otherwise equal in quality.
In this milestone decision, the Supreme Court ruled that separating children in public schools on the basis of race was unconstitutional. It signaled the end of legalized racial segregation in the schools of the United States, overruling the "separate but equal" principle set forth in the 1896 Plessy v. Ferguson case.
I just finished doing a power point on this court case