On This Day - What happened 9 December 2010 AD

On December 9, 2010, Zuckerberg, Bill Gates, and investor Warren Buffett signed "The Giving Pledge", in which they promised to donate to charity at least half of their wealth over the course of time, and invited others among the wealthy to donate 50 percent or more of their wealth to charity.

On December 9, 2010, Buffett, Bill Gates, and Facebook CEO Mark Zuckerberg signed a promise they called the "Gates-Buffett Giving Pledge", in which they promise to donate to charity at least half of their wealth, and invite other wealthy people to follow suit.