"Sir William Henry Perkin, FRS (12 March 1838 \u2013 14 July 1907) was an English chemist best known for his accidental discovery, at the age of 18, of the first aniline dye, mauveine."@en . . . . . "1907-07-14Z"^^ . . "1838-03-12Z"^^ . "Perkin, Sir William Henry"@en . . "1907Z"^^ . . . "Chemist" . "Sir William Henry Perkin"@en . . . . . . . "1838Z"^^ . .