The main cause that led to the Civil War is the dispute between _________ and ___________.
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The Ku Klux Klan refers to either of two U.S. _________ organizations that advocated __________________ at different times. It is the most notorious racist and terrorist organization whose main target is ________________.
Racial segregation is separation of ________ from "____________" in public facilities.
_____________isthe mother of the Civil Rights Movement.
___________________in 1963 is one of most famous events of the Civil Rights Movement.