Cities and towns throughout the United States would like to lay claim to being the first to observe Memorial Day. What really matters though, is that people who had been divided by the Civil War, came together in 1868 to recognize soldiers from the North and the South who had died in battle. Although the day was established to commemorate the Civil War dead, it has since been expanded to include those who have died in all American wars. Coming at the end of May, many people see Memorial Day weekend as the unofficial start of summer and celebrate with picnics and parties, but be sure to take some time out to attend a parade or at least join in the National Moment of Remembrance at 3 p.m. local time. Visit the sites below to learn more about the history of Memorial Day and how you can honor the men and women of the U.S. Armed Forces.