Peter Mark Roget

Profession: Lexicographer and Inventor

Nationality:

Why Famous: Best known for publishing the "Thesaurus of English Words and Phrases (Roget's Thesaurus) in 1852, Roget was also a physician who studied tuberculosis and the effects of nitrous oxide (laughing gas).

Born: January 18, 1779
Birthplace: London, England, United Kingdom
Star Sign: Capricorn

Died: September 12, 1869 (aged 90)