10. Barack Obama:

Obama became the first African-American President in the year 2008 and is serving as the President till date. He was born in Honolulu, Hawaii and graduated in Columbia University and Harvard law school. In that school he served as the President of the Harvard Law Review. Before becoming the President of the Nation, he had several jobs. He worked as the director of Developing Communities Project, a church-based community in Chicago for three years. He also worked as a consultant and instructor for the Gamaliel Foundation.