1952 revolution by dissolution army officers military authoritarianism. 1954- col gamal abdel nassar consolidates power. Changes titles to president and vice president. 1958 -62 brief union with syria (united arab republic) 1967 defeat in the six-days war. 1970 nassar dies, anwar sadat becomes interim: new constitution allowing opposition parties to exist. 1978 camp david accords: sadat founds national democratic party. 1981 sadat assassinated: hosni mubara takes over. Uses state of emergency to clamp down. 2005 referendum approves direct elections for president: electoral authoritarianism first contested presidential election, muslim brotherhood does well. Supreme council of the armed forces assumes power. 2012 mohammad morsi of the mb wins presidential elections defeated ahmed. Shafik on the run off vote: 52. 7% to 48. 3% Based on republicanism, semi-presidential system of government. Established after the egyptian revolution of 2011 and the resignation of mubarak. President is elected for two four year terms the parliament is unicameral.