Event | (1)0s or (2)0s |
World population reached 2 billion | |
First use of poison gas on the battlefield | |
Pahlavi Dynasty rose to power in Iran | |
Implementation of Daylight saving time | |
Türkiye became a secular republic | |
Tsar Nicholas II and his family murdered | |
Northern Ireland created within the UK | |
Mussolini formed National Fascist Party | |
Gandhi launched non-cooperation movement | |
Adolf Hitler became Führer of the Nazi Party | |
Vladimir Lenin died | |
Grigory Rasputin assassinated | |
Hirohito became Emperor of Japan | |
Union of South Africa created | |
Vatican City recognized as a sovereign state | |
Treaty of Versailles | |
Mexican Revolution began | |
Stalin became leader of the Soviet Union | |
Franz Ferdinand assassinated | |
'Mein Kampf' published | |
Arizona admitted to the Union | |
Walt Disney Company founded | |
Mark Twain died | |
Roald Amundsen reached the South Pole | |
Egypt gained independence from the UK | |
Bubble gum invented | |
RMS Lusitania sunk | |
Ernest Rutherford discovered the proton | |
Soviet Union formed | |
Armenian genocide in the Ottoman Empire started | |
World population reached 2 billion | |
First use of poison gas on the battlefield | |
Pahlavi Dynasty rose to power in Iran | |
Implementation of Daylight saving time | |
Türkiye became a secular republic | |
Tsar Nicholas II and his family murdered | |
Northern Ireland created within the UK | |
Mussolini formed National Fascist Party | |
Gandhi launched non-cooperation movement | |
Adolf Hitler became Führer of the Nazi Party | |
Vladimir Lenin died | |
Grigory Rasputin assassinated | |
Hirohito became Emperor of Japan | |
Union of South Africa created | |
Vatican City recognized as a sovereign state | |