On 1 September 1969, a group of rebel military officers led by Muammar Gaddafi launched a coup d'état against King Idris, which became known as the Al Fateh Revolution. Gaddafi was referred to as the "Brother Leader and Guide of the Revolution" in government statements and the official Libyan press. Moving to reduce Italian influence, in October 1970 all Italian-owned assets were expropriated and the 12,000-strong Italian community was expelled from Libya alongside the smaller community of Libyan Jews. The day became a national holiday known as "Vengeance Day". Libya's increase in prosperity was accompanied by increased internal political repression, and political dissent was made illegal under Law 75 of 1973. Widespread surveillance of the population was carried out through Gaddafi's Revolutionary Committees.Gaddafi also wanted to combat the strict social restrictions that had been imposed on women by the previous regime, establishing the Revolutionary Women's Formation to encourage reform. In 1970, a law was introduced affirming equality of the sexes and insisting on wage parity. In 1971, Gaddafi sponsored the creation of a Libyan General Women's Federation. In 1972, a law was passed criminalizing the marriage of any females under the age of sixteen and ensuring that a woman's consent was a necessary prerequisite for a marriage.On 25 October 1975, a coup attempt was launched by some 20 military officers, mostly from the city of Misrata. This resulted in the arrest and executions of the coup plotters. On 2 March 1977, Libya officially became the "Great Socialist People's Libyan Arab Jamahiriya". Gaddafi officially passed power to the General People's Committees and henceforth claimed to be no more than a symbolic figurehead. The new jamahiriya (Arab for "republic") governance structure he established was officially referred to as "direct democracy".In February 1977, Libya started delivering military supplies to Goukouni Oueddei and the People's Armed Forces in Chad. The Chadian–Libyan conflict began in earnest when Libya's support of rebel forces in northern Chad escalated into an invasion. Later that same year, Libya and Egypt fought a four-day border war that came to be known as the Libyan-Egyptian War, both nations agreed to a ceasefire under the mediation of the Algerian president Houari Boumediène. Hundreds of Libyans lost their lives in the war against Tanzania. Gaddafi financed various other groups from anti-nuclear movements to Australian trade unions.From 1977 onward, per capita income in the country rose to more than US$11,000, the fifth-highest in Africa, while the Human Development Index became the highest in Africa and greater than that of Saudi Arabia. This was achieved without borrowing any foreign loans, keeping Libya debt-free. The Great Manmade River was also built to allow free access to fresh water across large parts of the country. In addition, financial support was provided for university scholarships and employment programs.Much of Libya's income from oil, which soared in the 1970s, was spent on arms purchases and on sponsoring dozens of paramilitaries and terrorist groups around the world. An American airstrike intended to kill Gaddafi failed in 1986. Libya was finally put under sanctions by the United Nations after the bombing of a commercial flight killed 270 people.

Question: What year was Libya renamed?
Answer: 1977