Today marks the 100th anniversary of the death of Nonaka Chiyoko, who died on 22 February 1923. Nonaka Itaru and his wife Chiyoko took weather observations on the summit of Mt Fuji for almost three months in the winter of 1895, thus paving the way for a permanent Mt Fuji Weather Station. To commemorate their feat, the Fuyo Nikki Society (named for Chiyoko’s journal of this adventure) has set up an online museum to display relevant resources. The aim is to accurately inform the public about the couple's achievements based on historical facts.