Events
End of Ice Age, 8320 BC
Hunters, Gatherers, 6000 BC
Nabta, 4500 BC
Egyptian Calendar, 4236 BC
First Constellations, 3000 BC
Hipparchus, 130 BC
First Supernova China, 185 AD
First Supernova Worldwide, 1006
Tycho Brahe, 1572
Kepler, 1604
Lippershey, 1608
Flamsteed, 1680
Draper, 1840
Roentgen, 1895
HR Diagram, 1908
Birth of Chandra, 1910
Cosmic Waves, 1931
Cas A in Radio, 1937
Stellar Evolution Theory, 1940
First Optical Cas A, 1954
Evidence of Cosmic Rays, 1962
Skylab, 1962
AXAF Proposal, 1976
VLA Cas A, 1983
IR Cas A, 1996
Launch, First Light, 1999
Future, 2000