What was the name of the treaty that marked the end of world war 1?

The treaty that marked the formal end of World War I is known as the Treaty of Versailles. The Treaty of Versailles was signed on June 28, 1919, between Germany and the Allied Powers at the Palace of Versailles, just outside Paris, France.

Extra: The Treaty of Versailles is one of the most significant and controversial treaties in modern history. It outlined the conditions for peace and the reparation terms that Germany had to follow after being blamed for the outbreak and damages of World War I. The treaty included several key points, such as:

1. Territorial Losses: Germany had to return Alsace-Lorraine to France and cede land to Belgium, Poland, and Denmark. The province of West Prussia, Poznan, and parts of East Prussia were given to Poland, which also gained access to the Baltic Sea via a "corridor" that split German territory.

2. Military Restrictions: The treaty imposed severe military restrictions on the German armed forces. The size of the army was limited to 100,000 troops and conscription was banned. The navy was also restricted in terms of size and prohibited from having submarines or a large battleship fleet. Germany was forbidden to have an air force.

3. War Guilt Clause: Article 231, known as the "War Guilt Clause," placed full responsibility for the war on Germany and its allies, and required Germany to pay substantial reparations to the victorious countries.

4. League of Nations: The treaty also established the League of Nations, an international organization aimed at maintaining peace and preventing future conflicts. Germany was initially excluded from the League, but was later permitted to join.

The harsh terms of the Treaty of Versailles led to widespread resentment in Germany and are often cited as one of the contributing factors to the rise of Adolf Hitler and the outbreak of World War II.