Was there a war 100 years ago?

Yes, around 100 years ago, the world was experiencing the aftermath of World War I, which lasted from 1914 to 1918. The war involved many of the world's great powers and resulted in significant geopolitical changes. By 1923, the Treaty of Versailles had been signed, officially ending the war and redrawing national borders in Europe and beyond. The consequences of the war continued to shape international relations for decades.