
East Africa Protectorate was an area in the African Great Lakes occupying roughly the same terrain as present-day Kenya—approximately 639,209 km2 (246,800 sq mi)—from the Indian Ocean inland to the border with Uganda in the west. Controlled by Britain in the late 19th century, it grew out of British commercial interests in the area in the 1880s and remained a protectorate until 1920 when it became the Colony of Kenya, save for an independent country 16-kilometre-wide (10 mi) coastal strip that became the Kenya Protectorate.

General elections were held in East Africa Protectorate in March and April 1920, the first elections in the country. The Legislative Council had previously consisted entirely of appointed members. The new Council consisted of 11 elected white members, two appointed members representing the Indian population and one appointed member representing the Arab population, as well as a number of appointees by the Governor. This allowed the Council representative, although not responsible government. The territory became Kenya Colony on 23 July.

The East African campaign in World War I was a series of battles and guerrilla actions, which started in German East Africa (GEA) and spread to portions of Portuguese Mozambique, Northern Rhodesia, British East Africa, the Uganda Protectorate, and the Belgian Congo. The campaign all but ended in German East Africa in November 1917 when the Germans entered Portuguese Mozambique and continued the campaign living off Portuguese supplies.

In Kenya under British rule the kipande was an identity document which featured basic personal details, fingerprints, and an employment history. The Native Registration Amendment Ordinance of 1920 made it compulsory for African males above the age of 15. The effect of its adoption was to radically restrict the mobility of Africans. The main intent of the policy, supposedly, was to keep track of the labor pool efficiently. Kipande caused much resentment as all African males were required to wear it at all times around their necks.

The Legislative Council of Kenya (LegCo) was the legislature of Kenya between 1907 and 1963. It was modelled on the Westminster system. It began as a nominated, exclusively European institution and evolved into an electable legislature with universal suffrage. It was succeeded by the National Assembly in 1963.

The Protectorate of Uganda was a protectorate of the British Empire from 1894 to 1962. In 1893 the Imperial British East Africa Company transferred its administration rights of territory consisting mainly of the Kingdom of Buganda to the British Government.

The Uganda Scheme was a proposal presented at the Sixth Zionist Congress in Basel in 1903 by Zionism founder Theodor Herzl to create a Jewish homeland in a portion of British-controlled East Africa. He presented it as a temporary refuge for Jews to escape rising antisemitism in Europe. At the congress the proposal met stiff resistance.