-
240 BCE
Eratosthenes
Longitude + Latitude -
150 BCE
Ptolemy
discovers an early trigonometric system -
1508
Copernicus
Discovers heliocentric system -
1572
Tycho
Discovers elliptical orbit -
Kepler
Discovers that the orbit of Mars is elliptical -
Newton
Discovers laws of gravity -
Enstein
Discovers the Photoelectric effect