Math room timeline By PERICHET Period: 624 BCE to 546 BCE Thalès Period: 570 BCE to 495 BCE Pythagore Period: 287 BCE to 212 BCE Archimede Period: 280 BCE to 320 BCE Euclide Period: 276 BCE to 195 BCE Erathosthène Period: 250 BCE to 190 BCE Apollonius Period: 476 to 550 Ariabatha Period: 598 to 670 Brahmagupta Period: 780 to 850 Al Khwarizmi Period: 1175 to 1250 Fibonacci