When the first war ended?

The First World War, also known as World War I, officially ended on November 11, 1918, at 11 a.m. with the signing of the Armistice between the Allies and Germany. This agreement brought an end to the fighting on the Western Front and marked the beginning of a series of peace negotiations that would culminate in the Treaty of Versailles in 1919. The war had profound impacts on the geopolitical landscape and led to significant social and economic changes worldwide.