What do you think were the 3 biggest events that helped lead to change in America?

Civil Rights Movement

(https://avalon.law.yale.edu/20th_century/m1k01.asp) (March on Washington Speech by MLK)

After World War II, the modern civil rights movement quickly gained momentum.

What do you think were the 3 biggest events that helped lead to change in America?

Defend your choices using 3-4 secondary sources (1 of these can be your book).