Stephen Hawking: Theoretical Physicist and Author of A Brief History of

Stephen Hawking was a British theoretical physicist. Born on January 8, 1942, in Oxford, he was diagnosed with amyotrophic lateral sclerosis at 21.

He did groundbreaking work on black holes and cosmology, including Hawking radiation. His book A Brief History of Time (1988) sold over 10 million copies. He was Lucasian Professor of Mathematics at Cambridge from 1979 to 2009 and received the Presidential Medal of Freedom in 2009.

He communicated through a speech-generating device. Hawking died at his home in Cambridge on March 14, 2018, at age 76.

Achievements: Presidential Medal of Freedom (2009), Lucasian Professor.

Birth: January 8, 1942 - Oxford, England.

Profession: Theoretical physicist.

Interesting Facts: He was given two years to live in 1963.