Who chose to move to the US when it was time build something great (as is true for several founders of great 'American' companies). America's (historic) greatne

Who chose to move to the US when it was time build something great (as is true for several founders of great 'American' companies). America's (historic) greatness didn't come from Americans necessarily being the best and the brightest, but from convincing the best and the brightest from all over the world that America was the country where they wanted to build their dream.