Seremban

City · c. 1775 CE · in Southeast Asia

Capital of Negeri Sembilan (1775–1894).

Quy Nhon (c. 1778 CE): Capital of Tây Son dynasty (1778–1789).
Pontianak (1771 CE): Capital of Pontianak Kadriyah Sultanate (1772–1827).
Georgetown (1781 CE): Capital of Guyana (1967–today).
Maputo (1781 CE): Capital of Mozambique (1976–today).
Bangkok (1782 CE): King Rama I founded the Chakri dynasty and moved the Siamese capital to Rattanakosin Island in 1782; Bangkok is now Thailand's capital.
Windsor (c. 1783 CE): Capital of Vermont Republic (1783–1790).
Bukittinggi (1784 CE): Capital of Republic of Indonesia (1948–1950).
Reykjavík (1786 CE): Capital of Kingdom of Iceland (1918–1939), Republic of Iceland (1946–today).
Kota Bharu (c. 1762 CE): Capital of Kelantan (1762–1904).
Castleton (1761 CE): Capital of Vermont Republic (1783–1790).

Around the same time and place

Ayutthaya (1351–1767 CE): Capital of the Siamese kingdom of Ayutthaya, founded in 1351, which became one of the largest and most cosmopolitan cities in Asia before it was destroyed by Burmese forces in 1767.
Founding of modern Singapore (1819 CE): Stamford Raffles established a British trading post at Singapore in 1819, which grew into a major free port.
Yogyakarta (1756 CE): Capital of Republic of Indonesia (1946–1948).
Java War (1825–1830 CE): Rebellion led by Prince Diponegoro against Dutch colonial rule in central Java, in which about 200,000 Javanese died.