Alan Turing was a mathematician who in 1937 suggested a theoretical machine, since called a Turing Machine, that became the basis of modern computing. In 1950 he suggested what has become known as a "Turing's test," still the criterion for...

Gerald R. Ford, 38th President of the United States (1974-1977), became President of the United States on August 9, 1974, under extraordinary circumstances. Owing to the Watergate scandal, Ford's predecessor, Richard Nixon, had resigned und...

Lyman Strong Spitzer, Jr. was an American theoretical physicist, astronomer and mountaineer. As a scientist, he carried out research into star formation, plasma physics, and in 1946, conceived the idea of telescopes operating in outer space...

Nelson Rolihlahla Mandela was a South African anti-apartheid revolutionary, politician and philanthropist who served as President of South Africa from 1994 to 1999. He was South Africa's first black chief executive, and the first elected in...

Sir Edmund Percival Hillary, was a New Zealand mountaineer and explorer. On 29 May 1953 at the age of 33, he and Sherpa mountaineer Tenzing Norgay became the first climbers known to have reached the summit of Mount Everest. They were part o...

Jacques Derrida was a French philosopher, born in French Algeria. He developed the critical theory known as deconstruction and his work has been labeled as post-structuralism and associated with postmodern philosophy. His prolific output of...

His Holiness the XIVth Dalai Lama, Tenzin Gyatso, is the spiritual and temporal leader of the Tibetan people. He was born in a small village called Takster in northeastern Tibet. Born to a peasant family, His Holiness was recognized at th...

George Walker Bush is an American politician who was the 43rd President of the United States from 2001 to 2009 and 46th Governor of Texas from 1995 to 2000. The eldest son of Barbara and George H. W. Bush, he was born in New Haven, Conn...

Elon Musk is a South African-born Canadian-American business magnate, investor and inventor. He is currently the CEO & CTO of SpaceX and CEO & Chief Product Architect of Tesla Motors. He is the founder of multiple companies, most notably Sp...

Dolly (July 5, 1996 – February 14, 2003), a ewe, was the first mammal to be cloned from an adult somatic cell. The cell used was a mammary cell, which is why she was named Dolly, after the curvaceous country western singer Dolly Parton. She...