The Federal Republic of Nigeria has an estimated population of 158.2 million (UN, 2010). The capital is Abuja and the largest city is Lagos. Nigeria has an area of 923,768 sq km (356, 669 sq miles). The main languages are English (official), Yoruba, Ibo, and Haussa
Nigeria became independent in 1960 from Britain. Soon after independence, a military government for ruled the country for nearly 16 years. In 1999, a peaceful civil transition was accomplished. Nigeria is the most populous country in Africa. Despite being a leading oil producer in Africa, progress is undermined by corruption and mismanagement. An ethnic and religious tension has led thousands to be killed and displaced by the violence.
The Nigerian constitution, which was passed in 1999, prohibits all forms of discrimination against women and grants equal rights to men and women. However, customary and religious law limit these rights. Certain states in the south follow Islamic Sharia law, which strengthen customs that discriminate against women. Domestic violence is widespread mainly in polygamous families and female genital mutilation is common in certain states, manly in rural areas.