Timetable of Universal Evolution
Cosmic Time: Aproach: Event:
In a second Singularity Big Bang
Up to 1millionth of a second Hadronic Era Strong force dominant; Particle
anti-particile annihilation
Up to 1 second Leptonic Era Weak force gains importance;
beta decay(neutron decays)
Up to 1 week Radiation Era Electromagnetism gaining
importance; smallest atoms
forming(helium, lithium...)
Up to 10,000 years Matter Era Matter no dominant energy
form: opaque universe
Up to 300,000 years Decoupling Era Gravity signification; transpa-
rent universe
In a second Singularity Big Bang
Up to 1millionth of a second Hadronic Era Strong force dominant; Particle
anti-particile annihilation
Up to 1 second Leptonic Era Weak force gains importance;
beta decay(neutron decays)
Up to 1 week Radiation Era Electromagnetism gaining
importance; smallest atoms
forming(helium, lithium...)
Up to 10,000 years Matter Era Matter no dominant energy
form: opaque universe
Up to 300,000 years Decoupling Era Gravity signification; transpa-
rent universe
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