First Large Scale Use of Poison Gas at Ypres

Germany initiates the first large-scale use of poison gas on the Western Front during World War I, marking a significant escalation in chemical warfare.

1915 · Global · government

Full entry with citations →

8 historical parallels

• Battle of Kousséri 1900

  French forces defeated Warlord Rabih az-Zubayr, securing French control over Chad.

• Russian Invasion of Manchuria 1900

  The Russian Empire invaded the Chinese province of Manchuria, escalating tensions in East Asia.

• Escalation of the Boxer Rebellion in China 1900

  The Boxer Rebellion escalated with attacks on Chinese and European civilians, leading to international intervention.

• Balangiga Massacre 1901

  Filipino guerrillas kill more than forty United States soldiers in a surprise attack.

• William McKinley Assassination 1901

  American anarchist Leon Czolgosz shoots U.

• Unification of Australia 1901

  The six British colonies in Australia federate to form the Commonwealth of Australia.

• Battle of Tweebosch 1902

  South African Boers win their last battle over the British Army, capturing a general and 200 soldiers.

• Hay–Bunau-Varilla Treaty Signed 1903

  The United States and Panama sign a treaty granting the U.