Enugu is the capital of Enugu State in Nigeria. It is located in southeastern Nigeria. The city has a population of 722,664 according to the 2006 Nigerian census. The name Enugu is derived from the two Igbo words Énú Ụ́gwụ́ meaning "hill top" denoting the city's hilly geography. The city was named after Enugwu Ngwo which coal was found under.Since the 17th century the location of present day Enugu has been inhabited by the Nike subgroup of the Igbo people; one of Enugu's neighbourhoods still retains the village's old name Ogui. In 1900 the Southern Nigeria Protectorate was established by the colonial administration of the British Empire. The discovery of coal by the colonialists led to the building of the Eastern Line railway to carry coal from the inland city to the port of Port Harcourt, a city created for this purpose located 151 miles south of what was called Enugu Coal Camp. Enugu was then renamed simply Enugu and developed as one of the few cities in West Africa created from European contact. By 1958 Enugu had over 8,000 coal miners. As of 2005 there are no significant coal mining activities left in the city.Enugu became the capital of the Eastern Region after Nigeria's independence in 1960; a succession of territorial adjustments in 1967, 1976 and 1991 led to Enugu becoming the capital of what is now Enugu State. On 30 May 1967 Enugu was declared the capital of the short-lived Republic of Biafra; for this Enugu is known as the "capital of Igboland." After Enugu was captured by Nigeria, the Biafran capital was moved to Umuahia.Industries in the city include the urban market and bottling industries. Enugu has become a preferred filming location for directors of the Nigerian movie industry, dubbed "Nollywood". Enugu's main airport is the Akanu Ibiam International Airport. The main educational establishment in the city is the Enugu campus of the University of Nigeria based in Nsukka, a town north of Enugu and in the same state.