Abuja the city of Abuja had a population of 776,298, making it one of the ten most populous cities in Nigeria. According to the United Nations, Abuja grew by 139.7% between 2000 and 2010, making it the fastest growing city in the world. , the city is experiencing an annual growth of at least 35%, retaining its position as the fastest-growing city on the African continent and one of the fastest-growing in the world. As at 2016, the metropolitan area of Abuja is estimated at six million persons, placing it behind only Lagos, as the most populous metro area in Nigeria.
South African Republic staged the Maritz Rebellion by declaring the reinstatement of the South African Republic and aligned themselves with the Central Powers. The rebellion was put down by British forces in February 1915. The land area that was once the ZAR now comprises all or most of the provinces of Gauteng, Limpopo, Mpumalanga, and North West in the northeastern portion of the modern Republic of South Africa. Constitutionally the name of the country was "" (South African Republic or ZAR). Many people also called the "ZAR Transvaal", in reference to the area over (or trans) the Vaal River, including the British press