Memorial Day in the United States was first started to honor American Civil War veterans in the Union, then extended further to all those who fallen during military service during World War 1 but It did not become an official holiday until 1971!
I know right, WTF??? Remembering people who have given their lives for freedom and basic human is very important, and today is a day that gives us all a chance to remember them and be thankful.
These are some links that discuss more about Memorial Day:
While you are partying it up on Memorial Day thank a veteran!