Veterans day
When did this first come about
And who did do this
What does this day mean to vets
And what are some events that day
http://www.timeanddate.com/holidays/us/veterans-day
At first it was called Armistice Day. Now it's called Remembrance Day in the United Kingdom and Veterans Day in the US.
Be sure to read the information in that very good linked article to get the details.