The Aga Khan, who became the spiritual leader of the world’s millions of Ismaili Muslims at age 20 as a Harvard undergraduate and poured a material empire built on billions of dollars in tithes ...

PARIS — The Aga Khan, who became the spiritual leader of the world's millions of Ismaili Muslims at age 20 as a Harvard undergraduate and poured a material empire built on billions of dollars in ...

He became the Aga Khan IV on Oct. 19, 1957, in Dar es Salaam, Tanzania, on the spot where his grandfather once had his weight equaled in diamonds in gifts from his followers. He had left Harvard ...