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Gia Long conquered Hanoi and unified modern-day Vietnam, which had experienced centuries of feudal warfare.

Historical image related to Gia Long conquered Hanoi and unified modern-day Vietnam, which had experienced centuries of feudal warfare. from July 22, 1802

Gia Long

Founding emperor of the Nguyễn dynasty (r. 1802–04)

Gia Long, born Nguyễn Phúc Ánh (阮福暎) or Nguyễn Ánh (阮暎), was the founding emperor of the Nguyễn dynasty, the last dynasty of Vietnam, which would rule the unified territories that constitute modern-day Vietnam until 1945.
Source: Wikipedia (CC BY-SA)

Hanoi

Capital of Vietnam

Hanoi is the capital and second-most populous city of Vietnam. The name "Hanoi" translates to "inside the river". As a municipality, since 2025, Hanoi consists of 51 wards and 75 communes. The city encompasses an area of 3,359.84 km2 (1,297.24 sq mi). and as of 2025 has a…
Source: Wikipedia (CC BY-SA)