Nigeria, officially the Federal Republic of Nigeria, is a federal constitutional republic comprising 36 states and its Federal Capital Territory, Abuja. The country is located in West Africa and shares land borders with the Republic of Benin in the west, Chad and Cameroon in the east, and Niger in the north. Its coast in the south lies on the Gulf of Guinea on the Atlantic Ocean. The three largest and most influential ethnic groups in Nigeria are the Hausa, Igbo and Yoruba. In terms of religion Nigeria is roughly split half and half between Muslims and Christians with a very small minority who practice traditional religion.
The people of Nigeria have an extensive history. Archaeological evidence shows that human habitation of the area dates back to at least 9000 BCE. The area around the Benue and Cross River is thought to be the original homeland of the Bantu migrants who spread across most of central and southern Africa in waves between the 1st millennium BCE and the 2nd millennium. The name Nigeria was taken from the Niger River running through the country. This name was coined by Flora Shaw, the future wife of Baron Lugard, a British colonial administrator, in the late 19th century.
Nigeria is the most populous country in Africa, the seventh most populous country in the world, and the most populous country in the world in which the majority of the population is black. It is listed among the "Next Eleven" economies, and is a member of the Commonwealth of Nations. The economy of Nigeria is one of the fastest growing in the world, with the International Monetary Fund projecting a growth of 9% in 2008 and 8.3% in 2009. The IMF further projects a 8% growth in the Nigerian economy in 2011.
Nigeria is a Federal Republic modeled after the United States, with executive power exercised by the president and with influences from the Westminster System model in the composition and management of the upper and lower houses of the bicameral legislature. However, the President of Nigeria is both head of state and head of government, and of a multi-party system. Nigerian politics takes place within a framework of a federal, presidential, representative democratic republic, whereby Executive power is exercised by the government. Legislative power is vested in both the government and the two chambers of the legislature, the House of Representatives and the Senate. Together the two chambers make up the law-making body in Nigeria called the National Assembly. The highest judiciary arm of government in Nigeria is the Supreme Court of Nigeria. Nigeria also practices Baron de Montesquieu's theory of the separation of powers. The National Assembly serves as a check on the executive arm of government.
Football is Nigeria's national sport and the country has its own Premier League of football. Nigeria's national football team, known as the Super Eagles, has made the World Cup on four occasions 1994, 1998, 2002, and most recently in 2010. They won the African Cup of Nations in 1980 and 1994, and also hosted the Junior World Cup. They won the gold medal for football in the 1996 Summer Olympics (in which they beat Argentina). The nation's cadet team to Japan '93 produced some international players notably Nwankwo Kanu, a two-time African Footballer of the year who won the European Champions League with Ajax Amsterdam and later played with Inter Milan (Italy), Arsenal FC (London, UK), West Bromwich Albion (UK) and Portsmouth F.C. (UK). Other players that graduated from the Junior teams are Celestine Babayaro (of Newcastle United, UK), Wilson Oruma and Taye Taiwo (of Marseille, France).
According to the official May 2010 FIFA World Rankings, Nigeria was the second top-ranked football nation in Africa and the 21st highest in the world. Nigeria is also involved in other sports such as basketball, cricket and track and field. Boxing is also an important sport in Nigeria; Dick Tiger and Samuel Peter are both former World Champions.