Trade centers such as Mombasa have existed along the Kenyan and Tanzanian coastlines, known as the Land of Zanj, since at least the 2nd century. These centers traded with the outside world, including China, India, Indonesia, the Middle East, North Africa, and Persia. By around the 9th century, the mix of Africans, Arabs, and Persians who lived and traded there became known as Swahili ("people of the coast") with a distinct language (KiSwahili) and culture. The Portuguese arrived in the 1490s and, using Mombasa as a base, sought to monopolize trade in the Indian Ocean. The Portuguese were pushed out in the late 1600s by the combined forces of Oman and Pate, an island off the coast. In 1890, Germany and the UK divided up the region, with the UK taking the north and the Germans the south, including present-day Tanzania, Burundi, and Rwanda. In 1895, the British established the East Africa Protectorate, which in 1920 was converted into a colony, and named Kenya after its highest mountain. Numerous political disputes between the colony and the UK led to the violent Mau Mau Uprising, which began in 1952, and the eventual declaration of independence in 1963.

Jomo KENYATTA, the founding president and an icon of the liberation struggle, led Kenya from independence in 1963 until his death in 1978, when Vice President Daniel Arap MOI took power in a constitutional succession. The country was a de facto one-party state from 1969 until 1982, after which time the ruling Kenya African National Union (KANU) changed the constitution to make itself the sole legal political party. MOI gave in to internal and external pressure for political liberalization in 1991, but the ethnically fractured opposition failed to dislodge KANU from power in elections in 1992 and 1997, which were marred by violence and fraud. MOI stepped down in 2002 after fair and peaceful elections. Mwai KIBAKI, running as the candidate of the multiethnic, united opposition group, the National Rainbow Coalition (NARC), defeated KANU candidate Uhuru KENYATTA, the son of the founding president, and assumed the presidency following a campaign centered on an anticorruption platform. 

Opposition candidate Raila ODINGA challenged KIBAKI's reelection in 2007 on the grounds of widespread vote rigging, leading to two months of ethnic violence that caused more than 1,100 deaths and displaced hundreds of thousands. African Union-sponsored mediation resulted in a power-sharing accord that brought ODINGA into the government as prime minister and outlined a reform agenda. In 2010, Kenyans overwhelmingly voted to adopt a new constitution that eliminated the prime minister, introduced additional checks and balances to executive power, and devolved power and resources to 47 newly created counties. Uhuru KENYATTA won the first presidential election under the new constitution in 2013. He won a second and final term in office in 2017 after a contentious repeat election. In 2022, William RUTO won a close presidential election; he assumed the office the following month after the Kenyan Supreme Court upheld the victory.

Kenya Space Agency (KSA; established, 2017) (2024)

Has a national space strategy focused on acquiring and applying space technologies and applications for agriculture, communications, disaster and resource management, security, urban planning, and weather monitoring; jointly develops and builds nanosatellites with foreign partners; operates satellites; researching and developing satellite payloads and imagery data analysis capabilities; has cooperated on space issues with China, Japan, Italy, and the US, as well as African partners; developing a satellite imagery/geospatial analysis and data sharing portal that contains 17 years of satellite imagery for other African countries, including Ghana, Senegal, Sierra Leone, and Tanzania; cooperating with Egypt, Ethiopia, Ghana, Nigeria, Sudan, and Uganda to establish a joint remote sensing (RS) satellite to monitor climate changes on the African continent (African Development Satellite program) (2024)