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.
Postal orders of the South African Republic Postal orders of the South African Republic The South African Republic's postal orders were introduced on 1 January 1898, which was also the date that the "South African Postal Union Convention" came into effect. The postal orders are inscribed in Afrikaans. Issued postal orders do not have counterfoils attached, as the counterfoils were kept by the post office for recording purposes. Any postal orders with counterfoils still attached are from books souvenired after the post office was captured during the Second Boer War. The South African Republic was the first country, along with the Orange Free State, to declare postal