The black death because of how many people were dying and the lack of spare man power
Strom Thurmond did not challenge the status quo.
Thurgood Marshall argued cases like <em>Brown v. The Board of Education </em>before the US Supreme Court, and later (in 1967) became a Supreme Court justice -- the first African-American justice to serve on the court.
As president, Harry Truman signed Executive Order 9981, which abolished racial segregation in the US military.
Jackie Robinson was the first black player to play in Major League Baseball.
Strom Thurmond was a US Senator from South Carolina who sought to protect the status quo against the civil rights movement.
The concept mentioned above is called World System Theory. It is produced by sociologists named Immanuel Wallerstein and for him, it is a way to deal with world history and social change that proposes there is a world financial framework in which a few nations advantage while others are misused.