October 10

Common observances

Several notable observances take place on October 10 or are associated with it. Examples include:

• Double Ten Day — the national day of the Republic of China (commonly known as Taiwan), commemorating the Wuchang Uprising of 1911 that led to the end of imperial rule in China.
• World Mental Health Day — an annual awareness day observed by international health organizations and advocacy groups to raise awareness about mental health issues and promote better mental health care.
• In some countries, civic holidays that are scheduled on the second Monday in October (such as Columbus Day or Indigenous Peoples' Day in parts of the United States) can fall on October 10 in certain years.

Historical background

The date has acquired particular importance because of the 1911 uprising based in Wuchang, which began on October 10 and triggered a series of events leading to the establishment of the Republic of China. Over time this date has been commemorated with parades, official ceremonies and public rituals in places that observe it as a national day.

Calendar and cultural notes

October 10 sits inside the sign of Libra in Western astrology and is part of the month whose traditional birthstones include opal and tourmaline. As an entry in the modern civil calendar it is defined and located within the framework of the Gregorian calendar, which organizes leap years and the count of days through the year.

Notable uses and distinctions

Beyond formal holidays, October 10 is used as a reference point in historical timelines, anniversary commemorations and cultural programming. It is a common date for conferences, awareness campaigns and civic events because of its established international observances and its stable position in the calendar.