Memorial Day is an American holiday observed on the last Monday of May to honor and remember members of the military who died serving their country. On this day, Americans visit cemeteries and memorials to place flowers and flags on the graves of fallen soldiers, attend parades and ceremonies, and take time to reflect on the sacrifices made by service members throughout the nation's history.

The holiday began after the Civil War, when communities started decorating the graves of soldiers who had died in that conflict. It was originally called Decoration Day. Over time, Memorial Day grew to honor all American military personnel who gave their lives in any war or conflict, from the Revolutionary War to recent conflicts in Iraq and Afghanistan.

Many people observe a National Moment of Remembrance at 3:00 PM local time on Memorial Day, pausing for one minute of silence to remember the fallen. The holiday has also become associated with the unofficial start of summer, with family gatherings and cookouts, though its primary purpose remains solemn: to memorialize those who made the ultimate sacrifice for their country.

Memorial Day is different from Veterans Day in November, which honors all who have served in the military, whether they’re living or dead.