Pre-Solar System Period
(from the Big Bang until the formation of the Solar System)

The following dates and events are from Steven Hawking's book, The Universe in a Nutshell (c) 2001:

TIMEEVENT
0"The Big Bang", the origin of the universe
0 to 10-43 s"Plank Era", unknown physics (quantum gravity?)
10-43 s to 10-35 s"Grand Unification Theory Epoch" The balance of matter and antimatter tips in the balance of matter
10-35 s to10-10 s"Quark Soup" Electro-weak force dominates and quarks and antiquarks exist.
10-10 s to 1 s"Hadron and Lepton Era" Quarks combine to form protons, neutrons, mesons, and baryons
1 s to 3 minProtons and neutrons combine to form nuclei of Hydrogen, Helium, Lithium, and Deuterium
3 min to 300,000 yearsMatter and radiation couple - the first stable nuclei form
300,000 years to 1 billion yearsDecoupling of matter and energy.
1 billion years to presentClusters of matter form quasars, stars, and galaxies. The stars form heavier nuclei.