When was the first world war​

The First World War, was fought between 1914-1918, in Europe by two sections, known as triple entente and triple alliance, this war was sparked with the assassination of Archduke Franz Ferdinand, of Austria-Hungary, and Serbia was blamed for the assassination and it was sent a declaration of war on 28 July,1914 and hence started war and it came to an end four years later, on 11 June 1918.