Bill Gates had an estimated net worth of US$90.6 billion at the time. , Gates had a net worth of $95.4 billion, making him the second-richest person in the world, behind Bezos. Later in his career and since leaving Microsoft, Gates pursued a number of philanthropic endeavors. He donated large amounts of money to various charitable organizations and scientific research programs through the Bill & Melinda Gates Foundation. In 2009, Gates and Warren Buffett founded The Giving Pledge, whereby they and other billionaires pledge to give at least half of their wealth to philanthropy. The foundation works to save lives and improve
Bill Gates the construction of the Gates Computer Science Building, completed in January 1996, on the campus of Stanford University. The building contains the Computer Science Department (CSD) and the Computer Systems Laboratory (CSL) of Stanford's Engineering department. On August 15, 2014, Bill Gates posted a video of himself on Facebook in which he is seen dumping a bucket of ice water on his head. Gates posted the video after Facebook founder Mark Zuckerberg challenged him to do so in order to raise awareness for the disease ALS (amyotrophic lateral sclerosis). Since about 2005, Bill Gates and his foundation have taken an