When I was growing up my grandmother lived with us. She always referred to this day as Decoration Day. We would take lilacs and decorate the graves of grandparents and other family members.
We know it today as Memorial Day. Being curious about the history of the day I did an online search... History.com has a nice page on the day which was originally to honor our fallen soldiers from the Civil War.
This photo is taken from the National Archives. You can find many Civil War photos there as well as other great information.
Now we call this day Memorial Day. Somehow to me saying "celebrate" doesn't quite fit. And I can't bring myself to say "Happy Memorial Day!" as some do. For me it's remembering those men and women who have served us all, and so many who gave the ultimate gift. So to all of our men and woman who are serving, and to all of the fallen, and their families, -- I say a heart felt "thank you!"