. . "Bolyai, Farkas"@en . . . . . . . . . "Hungarian mathematician" . . . "Farkas Bolyai"@en . . "1775Z"^^ . . . "1775-02-09Z"^^ . . . "1856Z"^^ . . . "1856-11-20Z"^^ . "Farkas Bolyai (Hungarian: [\u02C8f\u0252r.k\u0252\u0283 \u02C8bo\u02D0.j\u0252.i]; 9 February 1775 \u2013 20 November 1856; also known as Wolfgang Bolyai in Germany) was a Hungarian mathematician, mainly known for his work in geometry."@en .