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Events on Sunday 12 September 1869 1
1779 – 1869Peter Mark Roget (1779-1869)Died 12 September 1869, aged 90Peter Mark Roget was a British physician and scholar best known for compiling "Roget's Thesaurus," first published in 1852. A polymath, he also contributed to physiology and devised an early form of the slide rule. His thesaurus remains in print and in use more than a century and a half later.