10OCTOBER

ON THIS DAY

What happened on October 10?

October 10 stretches from the discovery of a distant moon and a revolution in China to nuclear history, the Tokyo Olympics, Fijian independence, mental-health advocacy and constitutional change in the Caribbean.

8 researched moments · 7 themes · reviewed September 2026

8 moments shown

1846

William Lassell discovered Triton

English astronomer William Lassell discovered Triton, Neptune’s largest moon, only weeks after Neptune itself was identified.

1911

The Wuchang Uprising began

Revolutionary soldiers in Wuchang launched an uprising against China’s Qing dynasty, prompting provinces across the country to break with imperial rule.

1957

The Windscale reactor fire began

A fire broke out in a reactor at Britain’s Windscale nuclear site, releasing radioactive material into the environment.

1964

The Tokyo Olympic Games opened

Emperor Hirohito opened the Games of the XVIII Olympiad at Tokyo’s National Stadium.

1970

Fiji became independent

Fiji gained independence from the United Kingdom after ninety-six years as a British colony.

1992

The first World Mental Health Day was observed

The World Federation for Mental Health initiated an annual day devoted to mental-health education, awareness and advocacy.

2010

The Netherlands Antilles was dissolved

The Netherlands Antilles ceased to exist as a single political entity; Curaçao and Sint Maarten became constituent countries while Bonaire, Sint Eustatius and Saba became special municipalities of the Netherlands.

2014

Malala Yousafzai and Kailash Satyarthi received the Nobel Peace Prize

The Norwegian Nobel Committee awarded the Peace Prize jointly to Pakistani education advocate Malala Yousafzai and Indian children’s-rights activist Kailash Satyarthi.

A LIVING COLLECTION

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