finger wif poop on it By poopiefinger23 Period: 384 BCE to 322 BCE Aristotle Period: 310 BCE to 230 BCE Aristarchus of Samos Period: 190 BCE to 120 BCE Hipparchus Period: 100 BCE to 170 BCE Ptolemy Period: 1473 to 1543 Copernicus Period: 1546 to 1601 Brahe Period: 1564 to 1642 Galileo Period: 1571 to 1630 Kepler Period: 1642 to 1727 Issac Newton Period: 1738 to 1822 Whilliam Herschel