Veterans Day Sunday, November 11

This is the 100th anniversary of Armistice Day, the origin of Veterans Day. Armistice Day marked the end of World War I.

After the end of World War II, most member states of the Commonwealth of Nations, like United Kingdom and (as Canada in 1931), moved most Armistice Day events to the nearest Sunday and officially began to commemorate both World Wars. They adopted the name Remembrance Day or Remembrance Sunday.

Other countries also changed the name of the holiday just prior to or after World War II, to honor veterans of that and subsequent conflicts. The United States chose All Veterans Day, later shortened to 'Veterans Day', to explicitly honor military veterans, including those participating in other conflicts.

--Wikipedia