Ellen Eugenia Johnson Sirleaf is a Liberian politician who served as the 24th president of Liberia from 2006 to 2018. Sirleaf was the first elected female head of state in Africa. The Nobel Peace Prize 2011, announced October 7, 2011. Ellen Johnson Sirleaf, Leymah Gbowee, and Tawakkol Karman, “for their non-violent struggle for the safety of women and for women's rights to full participation in peace-building work”. Ellen Johnson Sirleaf: born 1938, Monrovia, Liberia. Leymah Gbowee: born 1972, Monrovia, Liberia. Tawakkol Karman: born 1979, Ta'izz, Yemen. Wiki link Wiki link Wiki link Data: the Nobel Foundation (CC0).