1 Ellen Johnson Sirleaf(24th President of Liberia)
Liberian politician, Ellen Johnson Sirleaf, served as the 24th President of Liberia from 2006 to 2018. She was the first elected female head of state in Africa. An alumnus of the Harvard University, she began her political career in the 1970s and rose through the ranks with time. She is the recipient of the 2011 Nobel Peace Prize.