Here's a look at what you should know about Egypt, the most populous country in the Arab world.
Facts: Egypt is located in North Africa and is bisected by the Nile River. It shares a border with Israel, Sudan and Libya. It also borders the Mediterranean and the Red Sea.
Egypt has been described as one of the world's great civilizations.
The Suez Canal connects the Mediterranean Sea and the Red Sea through Egypt. Currently it is 193 miles long, 79 ft deep and 673 ft wide.
More than 90% of Egypt consists of desert.
Country Statistics: (from the CIA World Fact Book) Land Area: 1,001,450 sq km (about three times the size of New Mexico) Population: 85,294,388 (July 2013 est.) Median age: 24.8 (2013 est.) Capital: Cairo Ethnic Groups: Egyptian 99.6%, other 0.4% (2006 census) Religion: Muslim (mostly Sunni) 90%, Coptic 9%, other Christian 1% GDP: $537.8 billion (2012 est.) GDP per capita: $6,600 (2012 est.) Unemployment: 12.5% (2012 est.)
Timeline: 3200 BC-332 BC - Ruled by a series of Egyptian dynasties.
332 BC-600s AD - Ruled by Greeks, Romans and Byzantines.
600s AD - The Arabic language and Islamic religion become dominant in Egypt.
1517 - Conquered by the Ottoman Turks.
1798-1801 - Briefly controlled by France.
1858 - La Compagnie Universelle du Canal Maritime de Suez (Universal Company of the Maritime Suez Canal) is formed to dig a canal and operate it for 99 years. The company is privately owned by French and Egyptian interests and would become totally Egyptian owned after 99 years.
April 25, 1859 - Suez Canal excavation begins.
November 17, 1869 - The Suez Canal, 103 miles long, 36 feet deep, able to accommodate single lane traffic, opens for navigation.
1875 - The British government buys Egypt's interest in the Suez Canal company.
1882 - To protect its investment in the Suez Canal, Great Britain takes control of Egypt's government.
1888 - The Convention of Constantinople opens the Suez Canal to ships of all nations in peace and war without discrimination.
February 28, 1922 - Egypt achieves partial independence from its status as a protectorate of the United Kingdom. The country becomes a constitutional monarchy.
1936 - The Anglo-Egyptian Treaty of 1936 gives Great Britain authority to secure and defend the Suez Canal Zone.
May 14, 1948 - Israel declares statehood. The nations of Trans-Jordan, Egypt, Iraq, Lebanon, and Syria attack.
1952 - Egypt achieves full independence from Great Britain.
July 23, 1952 - Army officers, led by Gamal Abdel Nasser, overthrow the monarchy.
June 18, 1953 - Egypt declares itself a republic.
1954 - Gamal Abdel Nasser becomes the prime minister of Egypt.
1954 - Great Britain and Egypt sign a seven-year plan for British troop withdrawal from the canal zone.
June 18, 1956 - British troops withdraw from Egypt.
July 26, 1956 - Egypt nationalizes the canal to finance construction of the Aswan High Dam. This is the first time the canal is closed.
March 1957 - After much negotiation with Great Britain, France, the United States, NATO and the United Nations, the Suez Canal Authority reopens the canal.
1958-1961 - Egypt and Syria form the short-lived country of the United Arab Republic.
June 5-10, 1967 - The Six-Day War is fought between Israel and the Arab nations of Syria, Egypt, Jordan. Israel gains the territory of the Sinai Desert from Egypt.
1970 - The Aswan High Dam on the Nile river is completed at a cost of $1 billion.
September 28, 1970 - President Gamal Nasser dies of a heart attack. He is succeeded by his vice president, Anwar Sadat.
1971 - A new constitution is adopted. It defines Egypt as a democratic, socialist state with Islam as the official state religion.
October 6, 1973 - The Yom Kippur War begins when the Egyptian Air Force launches a daytime surprise attack on Israeli soldiers occupying the east bank of the Suez Canal. Within 20 minutes, the pilots reported 90% of their targets hit.
November 1977 - President Anwar Sadat flies to Israel and addresses the Knesset.
September 1978 - Egyptian President Anwar Sadat, Israeli Prime Minister Menachem Begin, and U.S. President Jimmy Carter meet at Camp David to discuss a peace treaty.
March 26, 1979 - Egypt and Israel formally sign a peace treaty.
October 6, 1981 - During a Cairo military parade commemorating Egypt's victories in 1973, Anwar Sadat is assassinated by a group of Islamic fundamentalists.
October 6, 1981 - Hosni Mubarak assumes the presidency following the assassination of Anwar Sadat. Mubarak is officially sworn in on October 14, 1981. Mubarak is reelected in 1987, 1993, 1999, and 2005.
1990-1991 - Egypt takes a leading role in liberating Kuwait from Iraqi occupation during the first Gulf War.