July 31, 781 – The oldest recorded eruption of Mount Fuji (Traditional Japanese date: July 6, 781).
Mount Fuji, located on Honshu Island, is the highest mountain peak in Japan at 12,389 feet. An active stratovolcano that last erupted in 1707–08, Mount Fuji lies about 60 miles south-west of Tokyo, and can be seen from there on a clear day. Mount Fuji’s exceptionally symmetrical cone, which is snow-capped several months a year, is a well-known symbol of Japan and it is frequently depicted in art and photographs, as well as visited by sightseers and climbers.
Mount Fuji is one of Japan’s “Three Holy Mountains” along with Mount Tate and Mount Haku. It is also a Special Place of Scenic Beauty and one of Japan’s Historic Sites. It was added to the World Heritage Site as a Cultural Site on June 22, 2013. As per UNESCO, Mount Fuji has “inspired artists and poets and been the object of pilgrimage for centuries”. (from Wikipedia)
Japan Post Holdings (Japan’s postal service), issued this beautiful color stamp showing Mount Fuji in 2015: