Timeline of the Universe --Pjacobi 20:32, 2005 Mar 13 (UTC)
Timeline of Cosmological Eras
This timeline shows the evolution of the cosmos through known marker events, giving us cosmological eras. Time is generally marked off in cosmological decades or in seconds.
Primordial Age
Big Bang Era
Time 0 to 10-43 seconds
Subatomic Era
see Timeline of the Big Bang for more details
Planck Epoch
Time 10-43 to 10-37
Inflationary Epoch
Grand Unification Epoch
Time 10-35 to 10-12 seconds
Electroweak Epoch
Time 10-12 to 10-6 seconds
Hadron Epoch
Time 10-6 to 1 seconds
Lepton Epoch
Time 1 to 180 seconds
Epoch of Nucleosynthesis
Time 3 minutes to 300,000 years
Radiation Era
Reionization Epoch
Matter Domination Epoch
Stelliferous Age
Cosmological decades 6 to 14
Degenerate Age
Cosmological decades 15 to 40
Black Hole Age
Cosmological decades 41 to 100