Bill Gates fourth most powerful person in the world in 2012, up from fifth in 2011. In 1994, he was honored as the 20th Distinguished Fellow of the British Computer Society (DFBCS). In 1999, Gates received New York Institute of Technology's President's Medal. Gates has received honorary doctorates from Nyenrode Business Universiteit, Breukelen, The Netherlands, in 2000; KTH Royal Institute of Technology, Stockholm, Sweden, in 2002; Waseda University, Tokyo, Japan, in 2005; Tsinghua University, Beijing, China, in April 2007; Harvard University in June 2007; the Karolinska Institute, Stockholm, in 2007, and Cambridge University in June 2009. He was also made an honorary
Bill Gates away half of its value, as detailed in "The Power of Half". Gates and his wife invited Joan Salwen to Seattle to speak about what the family had done, and on December 9, 2010, Bill and Melinda Gates, and investor Warren Buffett signed a commitment they called the "Giving Pledge." The pledge is a commitment by all three to donate at least half of their wealth over the course of time to charity. Gates has also provided personal donations to educational institutions. In 1999, Gates donated $20 million to the Massachusetts Institute of Technology (MIT) for the construction of a