'This Microsoft co-founder became the youngest U.S. billionaire at age 31'
Bill Gates
GUINNESS RECORDS: This Microsoft co-founder became the youngest U.S. billionaire at age 31
This Microsoft co-founder became the youngest U.S. billionaire at age 31
This Microsoft co-founder became the youngest U.S. billionaire at age 31
GUINNESS RECORDS
Bill Gates
GUINNESS RECORDS