Peter Mark Roget Biography
(Lexicographer)
Birthday: January 18, 1779 (Capricorn)
Born In: Soho
Peter Mark Roget was an English physician, philologist and inventor who is most celebrated for 'Roget's Thesaurus of English Words and Phrases', a classified collection of related words, first published in 1852. Born to a Swiss clergyman in England, Roget attended the Edinburgh University and graduated in medicine. As a young physician, he published works on tuberculosis and on the effects of nitrous oxide, then used as an anesthetic. After initially practicing in Bristol and Manchester, he moved to London and continued to lecture on medical topics. Later, Roget invented a slide rule to calculate the roots and powers of numbers which formed the basis of slide rules that served as the common currency in schools and universities until the invention of the calculator. He also had a keen interest in optics and wrote a paper suggesting the methods to improve the kaleidoscope. Along with that, he also wrote papers on a wide range of topics such as, natural theology, phenology and contributed to several encyclopedias of the time. After taking effective retirement from medicine, he spent the rest of his life on the project for which he is most remembered today, 'Roget's Thesaurus of English Words and Phrases', a dictionary of synonyms. A fellow of the Royal Society, he served as its Secretary for more than 20 years, and his remarkable Thesaurus has never been out of print since its first publication