The term wave is often intuitively understood as referring to a transport of spatial disturbances that are generally not accompanied by a motion of the medium occupying this space as a whole. In a wave, the energy of a vibration is moving away from the source in the form of a disturbance within the surrounding medium (Hall 1980, p. 8).
The first soldier to be buried in Arlington was Private William Henry Christman of Pennsylvania on May 13, 1864. There are 396 Medal of Honor recipients buried in Arlington National Cemetery, nine of whom are Canadian.
The crowd attending the first Memorial Day ceremony at Arlington National Cemetery was approximately the same size as those that attend todayâs observance, about 5,000 people. Then, as now, small American flags were placed on each grave â a tradition followed at many national cemeteries today.