Despite dropping out of Harvard University, Bill Gates is consistently ranked among the wealthiest people in the world. From 1995 to 2007, Gates was considered the wealthiest overall.

It was on this day, November 1st, in 1985 that Bill Gates and Microsoft launched Microsoft Windows for the first time. It would, of course, be followed by several improved versions.

Windows 1.0 was released to the public on November 20th of that same year. It was Microsoft’s first attempt at a multi-tasking graphical user interface on their PC computers. There were four versions of Windows 1.0, and this software was replaced by Windows 2.0 in 1987. Microsoft stopped supporting Windows on December 31, 2001, after sixteen years of use.