The Treaty of Trianon redrew the map of Central Europe, drastically reducing Hungary's territory and reshaping its national identity.
Signed on June 4, 1920, the Treaty of Trianon was a pivotal post-World War I agreement that significantly altered the geopolitical landscape of Central Europe. It marked the formal end of hostilities between the Allied Powers and Hungary, a successor state of the Austro-Hungarian Empire. The treaty's provisions resulted in Hungary losing approximately two-thirds of its pre-war territory and population, with significant portions ceded to Romania, Czechoslovakia, and the Kingdom of Serbs, Croats, and Slovenes. This territorial realignment aimed to weaken Hungary and prevent future aggression but also sowed seeds of discontent and irredentism, influencing Hungarian politics for decades. The treaty's harsh terms and the resulting national trauma have made it a lasting symbol of grievance in Hungarian history, contributing to future regional tensions and conflicts.
Chapters
Timeline
1919-01-18
Paris Peace Conference Begins
The Paris Peace Conference opened, setting the stage for the negotiation of treaties to formally end World War I, including the Treaty of Trianon.
1919-06-28
Treaty of Versailles Signed
The Treaty of Versailles was signed, ending the state of war between Germany and the Allied Powers and influencing the terms for other treaties.
1920-01-16
Trianon Negotiations Commence
Negotiations for the Treaty of Trianon began in earnest, with Hungary and the Allied Powers discussing the terms of the post-war settlement.
1920-06-04
Treaty of Trianon Signed
The Treaty of Trianon was signed at the Grand Trianon Palace in Versailles, imposing severe territorial and economic terms on Hungary.
1921-07-26
Trianon Treaty Ratified
The Treaty of Trianon was ratified by Hungary, formally accepting the terms and solidifying the new borders.
1921-08-30
Hungarian Border Disputes Emerge
Disputes over the new borders established by the Treaty of Trianon began to surface, leading to tensions with neighboring states.
1922-11-16
Rise of Hungarian Revisionism
Hungarian political movements advocating for the revision of the Treaty of Trianon gained momentum, reflecting national dissatisfaction.
1938-11-02
First Vienna Award
The First Vienna Award partially revised the Treaty of Trianon, returning some territories to Hungary as part of Axis negotiations.
1947-02-10
Treaty of Paris Signed
The Treaty of Paris reaffirmed the post-World War II borders, effectively nullifying the territorial gains Hungary made during World War II.
1989-06-16
Trianon Commemoration
Hungary commemorated the Treaty of Trianon, reflecting on its impact and the national trauma associated with the loss of territory.
Connected Across The Archives
Explore specific connections to other archives—civilizations, conflicts, dynasties, and companies that share history with this treaty.

Civilization Archive
(3)Austrian Empire
The Treaty of Trianon dismantled the Austrian Empire's territorial holdings, leading to significant political and ethnic tensions in Central Europe.
Kingdom of Hungary
Hungary's signing of the Treaty of Trianon resulted in losing two-thirds of its territory, fueling nationalistic resentment and instability.
Ottoman Empire
The Treaty of Trianon followed the Ottoman Empire's collapse, reshaping Middle Eastern and European borders and influencing regional power dynamics.
Conflict Archive
(3)Balkan Wars
Following the Balkan Wars, the Treaty of Trianon redrew Eastern European borders, exacerbating ethnic divisions and fostering future conflicts.
Eastern Front (World War I)
World War I's Eastern Front battles precipitated the Treaty of Trianon, which redrew borders and redefined national identities in Central Europe.
Greco-Turkish War
The Treaty of Trianon, shaped by post-World War I treaties, influenced the geopolitical landscape during the Greco-Turkish War's territorial disputes.
