factsmate.
◆ History · War & Conflict

An assassination in Sarajevo triggered World War I

On this day · 28 June 1914
45 sec read

Two shots fired at a street corner in Sarajevo set off the chain of alliances and ultimatums that became the First World War.

Verified · National WWI Museum and Memorial

At around 11 a.m. on June 28, 1914, a teenage Bosnian Serb named Gavrilo Princip stepped from a Sarajevo crowd and fired into an open car, killing Archduke Franz Ferdinand, heir to the Austro-Hungarian throne, and his wife, Sophie. It was the second attempt that day; an earlier bomb had bounced off the motorcade. A wrong turn by the driver delivered the couple straight to the waiting gunman.

Princip belonged to a small cell tied to the nationalist movement Young Bosnia, whose aim was to free Bosnia from Austro-Hungarian rule and build a South Slav state.

The killing handed Vienna a pretext. Exactly one month later, on July 28, Austria-Hungary declared war on Serbia, dragging Europe’s rival alliances into the conflict.

The assassination “triggered a chain of events which led directly to the outbreak of the First World War.”

Within weeks, a regional quarrel had become a continental war that would kill millions.

1
month to war
19
Princip's age
2
shots fired

Sources & references

3 references

Well-established. Corroborated by 3 independent sources.

1 National WWI Museum and Memorial museum “At around 11 a.m. today, two shots rang out from a street corner in the center of this city, mortally wounding the archduke Franz Ferdinand, heir to the throne of the Austro-Hungarian Empire and Sophie the Duchess of Hohenberg, his wife.” theworldwar.org ↗
2 Cambridge University Library — Sarajevo 1914 academic library “The assassination of its heir presumptive gave Austria-Hungary the opportunity to settle some old scores and declare war on Serbia ... which ... triggered a chain of events which led directly to the outbreak of the First World War.” lib.cam.ac.uk ↗
3 HISTORY media “Archduke Franz Ferdinand of Austria and his wife Sophie are shot to death by a Bosnian Serb nationalist during an official visit to the Bosnian capital of Sarajevo on June 28, 1914.” history.com ↗
✓ Last reviewed Jun 7, 2026

More like this