Bill Gates

Every entry, with its source

At 0

1. Oct 28, 1955

   Born in Seattle

   His father was a lawyer, his mother a bank director.

   Source: en.wikipedia.org

At 12

1. c. 1968

   First touched a computer at 13, on a school teletype

   Lakeside School, where he met Paul Allen.

   Source: en.wikipedia.org

At 17

1. Sep 1973

   Entered Harvard

   No declared major. He took math and computer classes.

   Source: en.wikipedia.org

At 19

1. Apr 4, 1975

   Founded Microsoft with Paul Allen

   Albuquerque, New Mexico. They started selling BASIC for the Altair. He dropped out of Harvard.

   Source: en.wikipedia.org

At 25

1. Nov 1980

   Signed the IBM PC operating system deal

   They bought another company's system and reworked it into MS-DOS. The deal that changed the company.

   Source: en.wikipedia.org

At 30

1. Nov 20, 1985

   Windows 1.0 ships

   Panned at first. It only started selling five years later, with 3.0.

   Source: en.wikipedia.org
2. Mar 13, 1986

   Microsoft goes public

   His holdings were worth $300 million within a day.

   Source: en.wikipedia.org

At 31

1. c. 1987

   Youngest billionaire on record, at 31

   The Forbes 400 list.

   Source: en.wikipedia.org

At 38

1. Jan 1, 1994

   Married Melinda French

   On Lanai, Hawaii.

   Source: en.wikipedia.org

At 39

1. Aug 24, 1995

   Windows 95 ships

   7 million copies the first week. The Start button was born here.

   Source: en.wikipedia.org

At 44

1. Jan 13, 2000

   Stepped down as CEO, handing it to Steve Ballmer

   He set up his foundation the same year and began giving money away.

   Source: en.wikipedia.org

At 52

1. Jun 27, 2008

   Retired from day-to-day work at Microsoft

   Foundation work from then on.

   Source: en.wikipedia.org

At 58

1. Feb 4, 2014

   Resigned as chairman of the board

   He stayed on only as a technology adviser.

   Source: en.wikipedia.org