Originally published on the I Earned It Blog. Celebrate and Honor Those We’ve Lost Memorial Day is Monday, May 29, 2023. Memorial Day is a day to remember and honor those who died in the line of duty in the United States. On May 5, 1868, the first Memorial Day was called Decoration Day. It was celebrated to honor our dead, according to US Memorial Day. Here are 7 things to do over this Memorial Day weekend: However you celebrate, remember to honor those who lost their lives fighting for our country.