After fighting between Allied Nations and Germany ended on November 11, 1918 WWI was considered over. It was made official when the Treaty of Versailles was signed seven months later. In November of 1919 President Wilson proclaimed November 11th as the first commemoration of Armistice Day by saying, "To us in America, the reflections of Armistice Day will be filled with solemn pride in the heroism of those who died in the country’s service and with gratitude for the victory, both because of the thing from which it has freed us and because of the opportunity it has given America to show her sympathy with peace and justice in the councils of the nations…"
An act approved on May 13, 1938 officially made the 11th of November in each year a legal holiday to thank veterans for their service to our country. From then on, the 11th of every Novemeber has been called Veterans Day.