How were the efforts to disenfranchise african americans finally overcome?

The Voting Rights Act of 1965 was the major piece of legislation that ended explicit African-American disenfranchisement in the South. This act held that any form of regulation that discriminated on the basis of race in the voting process was unconstitutional: this was a way of strengthening and enforcing the rights proscribed in the 14th and 15th Amendments.

Explanation:

The first Caliph, Abu Bakr. By the time of Muhammad’s death in 632, I

The second Caliph Omar. Under the second caliph Omar or Hadrat Umar Farooq (634 – 644)  

The third Caliph Othman and division.

The fourth Caliph Ali and the Shiites.