Bill Gates By 20davisM Oct 28, 1955 Bill Gates birth. 1967 Bill goes to Lakeside school. He meets his friend Paul Allen. 1973 Enrolls at Harvard University. 1975 Drops out of school. Paul and Bill start Microsoft. 1975 Bill made his first computer 1980 Microsoft signs important deal with IBM 1988 Paul Allen leaves Microsoft 1994 Bill and Melinda gets Married 1996 First child, Jennifer 1999 Second child, Rory 2000 Bill starts the Bill and Melinda Gates Foundation 2002 Third child, Phoebe 2014 Bills steps down as CEO of Microsoft