-
1000 BCE
Hominids Appear> present day (millions of year ago)
-
276 BCE
Eratosthenes
-
85 BCE
Ptolemy
-
1473
Copernicus
-
1546
Brahe
-
1561
Bacon
-
1564
Galileo
-
1571
Kepler
-
Descartes
-
Locke
-
Newton
-
Mendeleev
-
Curie
-
Leavitt
-
Wegener
-
Hess
-
Hubble