The assassination of Archduke Francis Ferdinand by Serbian nationalist Gavrilo Princip, a member of the Black Hand Society.
US became involved after the sinking of the Lusitania by German submarines.
Imperialism led to conflict over colonial resource, labor, and markets (APEX)
The assassination of Arch Duke Franz Ferdinand.
Assassination of Archduke Franz Ferdinand of Austria in Sarajevo in 1914
assassination of Franz Ferdinad and his wife
World War 1
Franz Ferdinand
The assasination of the heir to Austro-Hungarian Empire, Archduke Franz Ferdinand on 28th June 1914.
which event sparked world war 1?
Franz Ferdinand
The Bolshevik Revolution was the event that led to Russia's early exit from World War 1. It was a costly war for Russia.
archduke Franz Ferdinand, heir to the throne of Austria-Hungary
Franz Ferdinand was the trigger to ww1
The sinking of the Lucitania was the event that made the United States join World War 1
The violent event in 1914 helped start World War 1 was the assassination of Franz Ferdinand.
There are other factors, but the assassination of Archduke Ferdinand in 1914 is generally thought to have been of great importance as a trigger.
The Holocaust
Pearl Harbor