Who is who in Geometry
| Ancient Greece | Thales (624 – 546 BC), | Pythagoras (570 – 495 BC), | Euclid (323 – 283 BC), | Pappus (290 – 350 BC) | |
| and Rome: | Menelaus (70 – 140 AD) | Ptolemy (100 – 170 AD) | |||
| Renaissance: | Desargues (1591 – 1661), | Pascal (1623 – 1662) | Ceva (1647 – 1734) | ||
| 18th-19th century: | Gauss (1777 – 1855), | Brianchon (1783 – 1864), | Poncelet (1788 – 1867), | Möbius (1790 – 1868), | |
| Lobachevsky (1792 – 1856), | Bolyai (1802 – 1860), | Cayley (1821 – 1895), | Beltrami (1835 – 1899) | ||
| 19th-20th century: | Klein (1849 – 1925), | Poincaré (1854 – 1912), | Hilbert (1862 – 1943) | Coxeter (1907 – 2003) | |
| Thurston (1946 – 2012) | Perelman (1966 – ) |