World War 1 began on July 28, 1914 due to the assassination of Archduke Ferdinand.
Start: August 1, 1914 End: November 11, 1918
1914
The accepted date is September 1, 1939.
Serbia
World War I actually started in Europe on July, 1914.
WW1 1914 WW2 1939
After
Germany
1914
1969 - 2069
1918 was the armistice ending of world war 1 .