Mont Blanc massif led to calls to limit access to the most popular summits and for the mountains to be treated with greater respect. The Mont Blanc massif has provided numerous opportunities for academic research, dating back to the very first ascent of Mont Blanc in 1786 during which Michel Paccard carried scientific equipment to confirm it as the highest summit. In 1820, an ill-fated expedition led by Dr Hamel included pigeons intended for release at varying altitudes to measure the impact of reduced air density on their ability to fly. In 1890, Joseph Vallot built a small meteorological observatory at approximately between
The Tale of the Bamboo Cutter and was overcome with sadness. He asked his servants, "Which mountain is the closest place to Heaven?", to which one replied the Great Mountain of Suruga Province. The Emperor ordered his men to take the letter to the summit of the mountain and burn it, in the hope that his message would reach the distant princess. The men were also commanded to burn the elixir of immortality since the Emperor did not wish to live forever without being able to see her. The legend has it that the word "immortality", 不死 ("fushi"), became the name of the mountain, Mount Fuji.