Paul purchased the Seattle Seahawks NFL franchise in 1997, and since then the team has gone on to make three Super Bowl appearances.
Paul's name is, of course, synonymous with Microsoft, the company he co-founded with his friend Bill Gates, which changed the trajectory of modern computing.
The Great Elephant Census was a massive undertaking to survey the remaining savanna elephants across the African continent. Results of this survey shocked the world into action.
The Museum of Pop Culture opened in 2000 and over the years evolved into a hands-on museum experience celebrating all forms of popular culture and creative expression.
Paul pursued making space more accessible in ways that would fuel space innovation — including SpaceShipOne, the Allen Telescope Array, and Stratolaunch, the world's largest airplane by wingspan.