TIME	SubTime	ACTION	MEMO
1 Planck second		Big Bang	Dominance established by matter over anti-matter
1 minute		Implosion	Hydrogen formed from Helium.
500 million years		First Stars	Heavy elements are formed for the first time inside stars.
1 billion years		First spiral galaxies formed.  Milky Way is formed.	Our Milky Way is estimated to be around 12.5 billion years old.  It was formed from older, smaller galaxies that were broken apart.
9.1 billion years		Our Solar System formed	Meteor rocks seem to suggest that our solar system formed out of dust particles from a nearby Super Nova about 4.5 billion years ago.  Earth is also thought to be 4.5 billion years old.
13.7 billion years		Present Time
	2 to 2.5 million years ago	Stone Tools. First modern humans.	The first stone tools (very crude broken flints) are estimated to be 2 to 2.5 million years old.
	40-60,000 years ago	Material Culture	Rich collection of finely carved tools and jewelry are dated to this time period.  Weaving of cloth is also thought to have developed by 40,000 years ago based on pottery imprinted with woven patterns.
	12 - 14,000 years ago	Agriculture, Birth of Cities	Agriculture is discovered. First cities are formed.
	1927	Discovery of expanding universe, Cepheid Variable Star used as a measuring stick	Hubble uses his telescope to discovery that our universe is expanding.  Henrietta Leavitt discovers relationship between brightness and rotation of Cepheid stars.  All galaxies are discovered to be expanding uniformly away from our planet.
	1945	First computer, UNIVAC	Prompted by WWII, accelerated development into computers create the first programmable general computer.
	1965	Proof of Big Bang - microwave background radiation discovered	Discovery of background radiation left over from the first instance of the Big Bang revives the theory.
	1992-1993	Birth of Internet	World Wide Web is released from CERN, the physics research center in 1992.  Mosaic browser debuts in 1993.
	1995	Netscape IPO	Dot Com investment mania begins.
	1998	Google becomes official	A research project that began in January 1996, is officially incorporated in 1998 after receiving a $100,000 check from the first angel investor.
	100-500,000 years forward	Potential extinction of  humans.	Mammals have had an average life expectancy of 2.5 million years, mostly due to cycles in global temperature swings caused by the shifting of earth's magnetic core.  We have been around as a mammalian species for about 2 to 2.5 million years.  Unless we can control very-wide ranging swings in planetary temperatures, we will likely become extinct in 100 to 500,000 years.
21.5 billion years		Explosion of our Sun	Our sun is an G-Class star with an expected life of 12.4 billion years. (A correction from previous post)
100-200 billion years		Point of No-Return	The universe will expand forever beyond this point. There is some speculation that an unknown physical characteristic of our universe will start a contraction before our universe reaches this point of no return from terminal expansion.
1-10 trillion years		Last star burns out.	End of the universe.  Almost all matter has converted into iron.  Matter is too dispersed to form new stars.