Hanoi Poison Plot

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Âu Lạc period Cổ Loa Citadel
Chinese period Jiaozhi Siege of Jiao (271) Long Biên Tống Bình Siege of Songping (Tang-Nanzhao war) Đại La
Imperial period Edict on the Transfer of the Capital Imperial Citadel of Thăng Long Sack of Thăng Long (1285) Sack of Thăng Long (1288) Sack of Thăng Long (1371) Sack of Thăng Long (1383) Battle of Chương Dương Đông Kinh Bắc Thành Battle of Hanoi (1873) Battle of Hanoi (1882) Battle of Gia Cuc Battle of Cầu Giấy (1883)
French period Great Hanoi Rat Massacre Hanoi Exhibition Hanoi Poison Plot
Modern Hanoi Declaration of independence Battle of Hanoi (1946) Operation Rolling Thunder Hà Tây province Sơn Tây prison camp Operation Ivory Coast APEC Vietnam 2006 Millennial Anniversary of Hanoi 2017 Hanoi hostage crisis 2019 North Korea–United States Hanoi Summit
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The Poisoning at Hanoi Citadel (Vietnamese:Hà Thành đầu độc; Chữ Hán: 河城投毒) was a poisoning plot which occurred in 1908 when a group of Vietnamese indigenous tirailleurs attempted to poison the entire French colonial army's garrison in the Citadel of Hanoi. The aim of the plot was to neutralize the French garrison and make way for Hoang Hoa Tham's rebel army to capture Hanoi. The plot was disclosed, and then was suppressed by the French.