(http://[float=left]http://img.thefreedictionary.com/thumb/3/39/Coat_of_Arms_of_South_Africa_(1932-2000).svg.png%5B/float%5D) In 1910, the British colonies of Cape Colony, Transvaal, Natal, and Orange River were unified into the new Union of South Africa. Under the Union's constitution, power was centralized. Elections were held, and Louis Botha became the first prime minister. The Dutch language was given equal status with English, and each province retained its existing franchise qualifications.
The Union became independent and withdrew from the Commonwealth exactly how many years after its founding?
Source: The Free Encyclopedia Dictionary.