Second Battle of Ypres / first poison gas
1915 · Event
Germans use chlorine gas in mass attack — opens chemical warfare era.
On these timelines: Master, World War I, Medicine through Time
Around 1915
- Russian Revolution (1917)
- Einstein's Annus Mirabilis (1905)
- Founding of the Soviet Union (1922)
- Pop music: the 1920s (1920)
- Pop music: the 1910s (1910)
- Easter Rising / Irish War of Independence (1916)
- Treaty of Versailles (1919)
- Xinhai Revolution (1911)
- Spanish flu pandemic (1918)
- Weimar Republic (1919)