The Brief
Bill Gates has pledged to give 99% of his fortune away.
He said this week that the majority of his money, more than $100 billion, will "address challenges in Africa."
It’s among the largest philanthropic gifts ever, but Gates says he hopes other billionaires will "wallop" him and donate more.
Microsoft founder Bill Gates gave more details this week about where his vast fortune will go, just weeks after revealing that he will give away 99% of it.
Today, that would be worth an estimated $107 billion.
The pledge is among the largest philanthropic gifts ever – outpacing the historic contributions of industrialists like John D. Rockefeller and Andrew Carnegie when adjusted for inflation. Only Berkshire Hathaway investor Warren Buffett’s pledge to donate his fortune — currentl