On This Day - What happened 1 December 2015 AD

On December 1, 2015, Mark and Chan announced they would eventually give 99 percent of their Facebook shares (worth about US$45 billion at the time) to the Chan Zuckerberg Initiative.

On December 1, 2015, Zuckerberg and Chan announced the birth of their first daughter Max, and in an open letter to Max, they pledged to donate 99% of their Facebook shares, then valued at US$45 billion, to the Chan Zuckerberg Initiative, their new organization that will focus on health and education.