sentences:  After the First World War, more farmers arrived from England and South Africa, and by 1919 the European population was estimated at 9,000 settlers.On 23 July 1920, the inland areas of the East Africa Protectorate were annexed as British dominions by Order in Council.That part of the former Protectorate was thereby constituted as the Colony of Kenya and from that time, the Sultan of Zanzibar ceased to be sovereign over that territory.