Answer:
The Tulsa race massacre took place on May 31 and June 1, 1921, when mobs of white residents, some of whom had been deputized and given weapons by city officials, attacked Black residents and destroyed homes and businesses of the Greenwood District in Tulsa, Oklahoma, US.
Explanation:
C During the Cold War
The border in black is considered the line of containment between the first world and the second world countries.
increased urbanization which led to expansion