HERE IS THE LINK VERBATIM:
1) The Planck Era
No current theory of physics can describe what happened at this point in time, however we believe strongly that it was a singularity of pure energy at the start of time.
2) The Inflation Era
Part of the Universe expanded from billions of times smaller than a proton to something the size of a football field. This eras lifespan was a hundred billionth of a yoctosecond and was approximately 1,000 trillion trillion degrees centigrade.
3) The Quark Era
This period saw vast number of quark and anti quark (
what is quark?) pairs forming from energy and then annihilating back to energy.
Gluons and other particles also appeared. This eras lifespan was about 100 millionth of a yocto second and was approximately 10 billion billion degrees centigrade.
4) Separation of the Electroweak force
Close to the end of the quark era, the Electroweak force separated and the weak interaction, from then on, the forces of nature and physical laws were as they are now experienced.
This era was about 1.1 microseconds and temperatures reached 1000 trillion degrees.
5) Hadron Era
Around the beginning of this era, quarks and antiquarks began combining to form particles called hadrons. These included baryons (protons and neutrons) anti baryons and mesons. This ear took 1 microsecond to complete an was approximately 10 trillion degrees.
6) Lepton Era
Leptons (elections, neutrinos and antiparticles) were very numerous, by the end of this era the electrons annihilated with positrons (anti elections). The lepton era took 1 millisecond and was approximately 1 billion centigrade, by this point in the Big bang the universe was 1000 billion kilometres in diameter.
7) Nucleosynthesis Era
Neutrons converged into protons as the Universe cooled, but when there was about one neutron for every seven protons, most remaining neutrons combined with protons to make helium neclei, each with two protons and two neutrons. This era was 1 second long and was about 10 billion centigrade. In the middle of the Nucleosynthesis Era the Universe stretched to 10 light years in diameter (94.6 trillion kilometres)
8) Opaque Era
During this lengthy era of 200 seconds the sea of matter particles were in a continual state of interaction with photons making the Universe foggy. Temperatures reached 100 million degrees.
At the end of the Opaque Era, many more free protons existed than helium neclei, or other atomic neclei. The scene was set for the first atoms to form. When they did about 9 hydrogen atoms were made for each helium atom. A few lithium a deuterium (heavy hydrogen) atoms also formed.
The Matter Era is the start of our present era
AND ALSO MUST BE COUNTED.
9) Matter era