After Muhammad died who became a caliph

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.

c. archbishop desmond tutu promoted the acknowledgement of the rights of black africans and expose human rights abuses.

d. leader haile selassie modernized african society through the institution of progressive social, economic, and educational reforms.

roosevelt, a progressive reformer, earned a reputation as a "trust buster" through his regulatory reforms and anti-trust prosecutions. his "square deal" included regulation of railroad rates and pure foods and drugs; he saw it as a fair deal for both the average citizen and the businessmen.