Rwandan President Paul Kagame takes part in a conference on the role of women at the nation's Parliament in the capital, Kigali, in 2010. Women in Rwanda account for 64 percent of the lower house of Parliament — a higher percentage than in any other country. Jason Straziuso/AP hide caption

itoggle caption Jason Straziuso/AP

Protesters march in front of the Nigerian Embassy in Washington, D.C., on Tuesday in support of the girls kidnapped by members of the Islamist group Boko Haram. Gary Cameron/Reuters/Landov hide caption

itoggle caption Gary Cameron/Reuters/Landov

Iranian students climb over the wall of the U.S. Embassy in Tehran during the Iranian Revolution, Nov. 4, 1979. The students went on to seize the embassy staff, and hold 52 of them as hostages for 444 days. AFP/Getty Images hide caption

itoggle caption AFP/Getty Images