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AP
Bill and Melinda Gates were married in January 1, 1994.
A few months later, Bill asked her out on a date.
"You know I was thinking maybe we could go out - if you give me your phone number - maybe two weeks from tonight," Bill said, according to $4 gave with AOL's Makers site.
"And I said to him, 'Two weeks from tonight? I have no idea what I'm doing two weeks from tonight.' And I said, 'You're not spontaneous enough for me.'"
But Bill wasn't ready to give up just yet.
"He called an hour later and said, 'Is this spontaneous enough for you?'" Melinda $4.
She agreed to the date. They were married in a secret ceremony on the island of Lanai on January 1, 1994, after seven years of dating.
The couple has three daughters together. Their work with the Bill & Melinda Gates Foundation has included everything from eradicating diseases across the world to developing sources of food for impoverished people.