Mountain Day refers to three different and unrelated events: (1) Mountain Day, a student celebration in some colleges in the United States in which classes are cancelled without prior notice, and the student body heads to the mountains or a park, (2) International Mountain Day, held each year on 11 December, which was established by the UN General Assembly in 2003 to encourage sustainable development in mountains, and (3) Mountain Day, a national holiday in Japan as of 2016.
Mountain Day (Japan)
On August 11, in the year 0, Mountain Day (Japan). This event is recorded as a Holidays event in the history of August 11, one of 394 recorded events on this date across all of history.
Key Facts
- This event took place on August 11, 0 (AD era).
- It is categorised as a Holidays event in recorded history.
- Referenced in 2 Wikipedia articles.
- Wikipedia source last updated on 1 May 2026.
On This Date in History 394
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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