1) Sergey Brin – Google
Sergey Brin, who was born August 21, 1973, in Moscow, became a co-founder of Google, Inc., the world’s largest Internet company, providing users with a technology of search and a number of other important features in on-line world. In 2009 he was ranked as the 26th richest person in the world by Forbes. He immigrated to the United States in his childhood, when he was just 6, and when Sergey grew up, he began to study mathematics, following in his father's and grandfather's footsteps. First, Brin got a diploma of the University of Maryland, and then he became Ph.D in computer science at Stanford.