Veterans Day--as we know it--is fairly young as holidays go; signed into law by President Eisenhower on May 26, 1954. This happened after a campaign by one Alvin King of Emporia, Kansas, to include all veterans. Originally, November Eleventh of each year since 1919 was called "Armistice Day" in observance of the armistice signing that officially ended World War One.
The original holiday began as an 'unofficial observance' on November 11, 1919, and became official by an act signed into law by President Franklin Roosevelt on May 13, 1938, proclaiming November 11th each year to be a legal holiday; "a day to be dedicated to the cause of world peace and to be thereafter celebrated and known as 'Armistice Day.'"
Another little tidbit: ravioli is the un-official meal of Veterans Day. In the waning days of World War One, President Woodrow Wilson helped the White House kitchen staff prepare and serve ravioli to some 2,000 war returnees President Wilson invited to a 'home cooked' meal. Incidently, ravioli was served due to it's becoming an American kitchen mainstay because of advancements in commercial canning practices.
Go fly your American Flag as I do. If you have them, fly the flags of each service branch you served in, again as I do. I fly an American Flag, an Air Force flag as well as an Army flag!!