Answer: 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.
Explanation: In this milestone decision, the Supreme Court ruled that separating children in public schools on the basis of race was unconstitutional.
Answer:
The capital city of this empire was Tollan-Xicocotitlan, while other important cities included Tulancingo, and Huapalcalco, although some more distant cities like Chupícuaro, Chichen Itza, and Coba seem to have been under Toltec control or influence at some point.
Neutral because it means balanced
I believe 3 is the answer, because I think the U.S bought a part of Mexico.
B. Nonviolent
MLK believed in non-violent protest and all of his rallies were free of physical violence (ex: lunch counter sit ins)