All Events of the First World War and Its Aftermath, 1914 to 1929

Conventionally, the term is reserved for the two major international conflicts that occurred during the first half of the 20th century: World War I (1914-1918) and World War II (1939-1945).

It took place between 1 July and 18 November 1916 on both sides of the upper reaches of the river Somme in France.

The Battle of Verdun (French: Bataille de Verdun [bataj də vɛʁdœ̃]; German: Schlacht um Verdun [ʃlaxt ʔʊm ˈvɛɐ̯dœ̃]) was fought from 21 February to 18 December 1916 on the Western Front in France.

The Gallipoli campaign, the Dardanelles campaign, the Defence of Gallipoli or the Battle of Gallipoli (Turkish: Gelibolu Muharebesi, Çanakkale Muharebeleri or Çanakkale Savaşı) was a military campaign in the First World War on the Gallipoli Peninsula (now Gelibolu) from 19 February 1915 to 9 January 1916.

The Great Depression was a severe global economic downturn from 1929 to 1939.

The Russian Revolution was a period of political and social change in Russia, starting in 1917.

The Turkish War of Independence (15 May 1919-24 July 1923) was a series of military campaigns and a revolution waged by the Turkish National Movement, after the Ottoman Empire was occupied and partitioned following its defeat in World War I.

The Easter Rising (Irish: Éirí Amach na Cásca), also known as the Easter Rebellion, was an armed insurrection in Ireland during Easter Week in April 1916.

On the basis of the McMahon-Hussein Correspondence, exchanged between Henry McMahon of the United Kingdom and Hussein bin Ali of the Kingdom of Hejaz, the rebellion against the ruling Turks was officially initiated at Mecca on 10 June 1916.

The Kronstadt rebellion (Russian: Кронштадтское восстание, romanized: Kronshtadtskoye vosstaniye) was a 1921 insurrection of Soviet sailors, naval infantry, and civilians against the Bolshevik government in the Russian port city of Kronstadt.

Archduke Franz Ferdinand of Austria, heir presumptive to the Austro-Hungarian throne, and his wife, Sophie, Duchess of Hohenberg, were assassinated by Bosnian Serb student Gavrilo Princip in Sarajevo on 28 June 1914.

The 1918-1920 flu pandemic, also known as the Great Influenza epidemic or by the misleading name Spanish flu, was an exceptionally deadly global influenza pandemic caused by the H1N1 subtype of the influenza A virus.

At the orders of Talaat Pasha, an estimated 800,000 to 1.2 million Armenians were sent on death marches to the Syrian desert in 1915 and 1916.