In 1889, a British protectorate was proclaimed over the Shire Highlands, which was extended in 1891 to include the whole of present-day Malawi as the British Central Africa Protectorate. In 1907, the protectorate was renamed Nyasaland, a name it retained for the remainder of its time under British rule. In a prime example of what is sometimes called the "Thin White Line" of colonial authority in Africa, the colonial government of Nyasaland was formed in 1891. The administrators were given a budget of £10,000 (1891 nominal value) per year, which was enough to employ ten European civilians, two military officers, seventy Punjab Sikhs and eighty-five Zanzibar porters. These few employees were then expected to administer and police a territory of around 94,000 square kilometres with between one and two million people.