Bill Gates Timeline By sierrascriver Oct 28, 1955 Born on October 28, 1955 in Seattle, Washington Born 1967 attends prepatory academy attends Lakeside school 1973 Enrolls at Harvard SAT score of 1590/1600 1975 Partnership with Paul Allen at Micro-soft 1975 writes software for MITS Altair 1976 Open letter to Hobbyists link text 1979 Microsoft HQ in Bellevue, WA 1980 Partnership with IBM 1981 Bill Gates becomes Microsoft president 1981 Microsoft buys rights to DOS 1987 Becomes youngest billionaire 1989 Founds Corbis 1994 Marries Melinda French 1995 Becomes worlds richest man 12.9b 1998 US vs. Microsoft trial 1999 Publishes Business @ The Speed of Thought 2008 steps down as executive 2009 Hosts 25th anniversary TED Talk