Dar es Salaam

City · 1862 CE · in Sub-Saharan Africa

Capital of Tanzania (1964–1996).

Saigon (1862–1976 CE): Capital of French Indochina (1887–1954).
Turin (c. 1861 CE): Capital of Kingdom of Italy (1861–1865).
Dessau (c. 1863–2007 CE): Capital of Duchy of Anhalt (1863–1870).
Vladivostok (1860 CE): Capital of Provisional Priamurye Government (1922–1922).
Praia (1858 CE): Capital of Republic of Cabo Verde (1976–today).
Kuala Lumpur (1857 CE): Capital of Federation of Malaya (1958–1962), Malaysia (1963–today).
Budapest (c. 1867 CE): Capital of Hungarian Nationalists (1867–1918), Austria-Hungary (1868–1918), Hungarian Republic (1919–1943), and 1 more.
Ras Hafun (c. 1856 CE): Capital of Majeerteen Sultanate (1856–1889).
Tokyo (1868 CE): Capital of Empire of Japan (1943–1945), Japan (1953–today).
Ottawa (1855 CE): Capital of Canada (1932–today).

Around the same time and place

Burton and Speke’s expedition to Lake Tanganyika (1857–1859 CE): Richard Burton and John Hanning Speke travelled inland from Zanzibar along the caravan route and became the first Europeans to reach Lake Tanganyika. On the return Speke went north alone and reached Lake Victoria, which he took to be the source of the Nile.
Bujumbura (1871 CE): Capital of Republic of Burundi (1963–2019).
Stanley’s search for Livingstone (1871–1872 CE): Sent by the New York Herald, the journalist Henry Morton Stanley led a caravan from Bagamoyo to Ujiji on Lake Tanganyika, where in November 1871 he found David Livingstone, of whom little had been heard for years.
Jomo Kenyatta (c. 1897 CE – 1978 CE): Kenyan anti-colonial activist imprisoned by the British, who became Kenya's first prime minister and president after independence in 1963.
Nairobi (1899 CE): Capital of Republic of Kenya (1963–today).
Lilongwe (1902 CE): Capital of Malawi (1975–today).
Maji Maji Rebellion (1905–1907 CE): Uprising against German colonial rule in German East Africa, provoked by forced cotton cultivation; its suppression and the ensuing famine killed a large number of people.
Dodoma (1906 CE): Capital of Tanzania (1996–today).