When did Tanzania exist?

Tanzania existed 1964–present. On this map it is drawn 1961–2024.

How large was Tanzania?

At its greatest extent drawn on this map, Tanzania covered about 895,000 km². That is the largest area the border data gives it across the years it is drawn, not necessarily its greatest extent in history.

Africa · Independence and the modern states

Tanzania

Republic · 1964–present

Tanzania, in East Africa with roughly 67.5 million people, was formed on 26 April 1964 by the union of the mainland republic of Tanganyika and the island archipelago of Zanzibar; it was renamed the United Republic of Tanzania later that year. Dodoma is the official capital; Dar es Salaam is the largest city and commercial centre.

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Type: Republic
Existed: 1964–present
Shown on the map: 1961–2024
Peak area: 895k km²
Region: Africa

Overview

Origins and colonial background

The region contains some of the world's most important early-human sites, notably Olduvai Gorge. From the first millennium CE the Swahili coast hosted city-states such as Kilwa that traded gold, ivory and slaves with the Indian Ocean world. Germany colonized the mainland as German East Africa from 1885, crushing the Maji Maji rebellion of 1905–07 at the cost of perhaps 300,000 lives; after World War I Britain administered Tanganyika under a League of Nations mandate.

Political history

Julius Nyerere's Tanganyika African National Union led the mainland to independence on 9 December 1961. Zanzibar gained independence as a sultanate in December 1963, but a revolution in January 1964 overthrew the Arab-dominated government, prompting the union. Nyerere's 1967 Arusha Declaration launched ujamaa, a programme of African socialism and villagization, and Tanzania became a one-party state. In 1979 Tanzanian forces invaded Uganda and helped depose Idi Amin. Multiparty politics returned in 1992, but the ruling party (CCM) has won every election since, under presidents Nyerere, Ali Hassan Mwinyi, Benjamin Mkapa, Jakaya Kikwete and John Magufuli; on Magufuli's death in 2021, Samia Suluhu Hassan became the country's first female president, re-elected in 2025 amid protests.

Economy and culture

Agriculture employs most of the population (coffee, cotton, cashews, sisal), supplemented by mining, a growing natural-gas sector and tourism built around Kilimanjaro, the Serengeti and Zanzibar's beaches. Swahili is the national language and a symbol of unity across more than 120 ethnic groups.

Society and religion

Roughly 57% of Tanzanians are Christian and 37% Muslim, with Islam concentrated on the coast and islands.

Later developments and current situation

Tanzania has enjoyed relative peace and steady growth, though recent years have seen tighter political controls and unrest around the 2025 election.

Common questions

What was Tanzania?: Tanzania, in East Africa with roughly 67.5 million people, was formed on 26 April 1964 by the union of the mainland republic of Tanganyika and the island archipelago of Zanzibar; it was renamed the United Republic of Tanzania later that year. Dodoma is the official capital; Dar es Salaam is the largest city and commercial centre.
When did Tanzania exist?: Tanzania existed 1964–present. On this map it is drawn 1961–2024.
How large was Tanzania?: At its greatest extent drawn on this map, Tanzania covered about 895,000 km². That is the largest area the border data gives it across the years it is drawn, not necessarily its greatest extent in history.
Who ruled Tanzania?: Julius Nyerere's Tanganyika African National Union led the mainland to independence on 9 December 1961. Zanzibar gained independence as a sultanate in December 1963, but a revolution in January 1964 overthrew the Arab-dominated government, prompting the union.
What did the economy and culture of Tanzania rest on?: Agriculture employs most of the population (coffee, cotton, cashews, sisal), supplemented by mining, a growing natural-gas sector and tourism built around Kilimanjaro, the Serengeti and Zanzibar's beaches. Swahili is the national language and a symbol of unity across more than 120 ethnic groups.

Sources

Every source below was consulted while writing this entry.

Wikipedia — Tanzania en.wikipedia.org/wiki/Tanzania

This entry was written from the sources above and last updated 10 September 2026.

This entry was researched and drafted with AI from the sources above, and has not been reviewed by a historian. How entries are made

Text available under CC BY-SA 4.0: reuse it with a credit to The World Through Time and a link to this page. Passages drawing on the Wikipedia articles listed above are also licensed CC BY-SA 4.0 by their contributors.

Border geometry for the map itself comes from Cliopatria v0.12 (Seshat Global History Databank, CC-BY-4.0).

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