Veterans Day By The Gerbil Period: Jul 28, 1914 to Nov 11, 1918 World War 1 Nov 11, 1918 End of WW1 Jun 28, 1919 Treaty of Versailles Nov 11, 1919 Declared Veterans Day May 13, 1938 Veterans Day declared legal national holdiday Period: Sep 1, 1939 to Sep 2, 1945 World War 2 Jun 1, 1954 Armistice Day changed to Veterans Day Oct 8, 1954 Veterans Day procolamation