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Wednesday
December 9, 2026 — day 343 of 365
- Day of the year
- 343 of 365
- Week of the year
- 50
- Days left in 2026
- 22
The sky on December 9, 2026
Moon phase on December 9, 2026: New Moon
- Illumination
- 0%
- Moon age
- 29.49 days
- Sunrise
- 7:42 am
- Day length
- 9h 25m
- Sunset
- 5:06 pm
Times for Columbus, US (America/New_York), approximate
Date formats for December 9, 2026
- United States 12/9/2026 · December 9, 2026
- UK / Europe 9/12/2026 · 9 December 2026
- ISO 8601 2026-12-09
- Abbreviated Dec 9, 2026 · 9 Dec 2026
- Full format Wednesday, December 9th, 2026
This day in history — December 9
What happened on December 9
-
1979
A World Health Organization commission of scientists certified the global eradication of smallpox, making it the only human infectious disease to date to have been completely eradicated.
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1968
Douglas Engelbart gave what became known as "The Mother of All Demos", publicly debuting the computer mouse, hypertext, and the bit-mapped graphical user interface using the computer system NLS.
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1948
The United Nations General Assembly adopted the Genocide Convention, which defines genocide in legal terms and obligates its signatories to pursue the enforcement of its prohibition.
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1868
The first traffic lights are installed, outside the Palace of Westminster in London. Resembling railway signals, they use semaphore arms and are illuminated at night by red and green gas lamps.
-
2006
Space Shuttle program: Space Shuttle Discovery is launched on STS-116 carrying the P5 truss segment of the International Space Station.
Famous births on December 9
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1934
Judi Dench, English actress
-
1916
Kirk Douglas, American actor, singer, and producer
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1906
Grace Hopper, American admiral and computer scientist, designed COBOL
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1953
John Malkovich, American actor and producer
-
1957
Donny Osmond, American singer-songwriter, dancer, and actor
Famous deaths on December 9
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1971
Ralph Bunche, American political scientist, academic, and diplomat, Nobel Prize laureate
-
1996
Mary Leakey, English archaeologist and anthropologist
-
2024
Nikki Giovanni, American poet, writer and activist
-
2012
Patrick Moore, English lieutenant, astronomer, and educator
-
2012
Norman Joseph Woodland, American inventor, co-created the bar code