Wikipedia:Selected anniversaries/January 9
- 1768 - Philip Astley staged the first modern circus in London.
- 1839 - The French Academy of Sciences announced the Daguerreotype photographic process, named after its inventor, Louis Daguerre (pictured).
- 1878 - Humbert the Good became King of Italy.
- 1916 - World War I: In Gallipoli, the Ottoman Empire was victorious in the Battle of Çanakkale.
- 1964 - Martyrs' Day in Panama: A four-day riot erupted over sovereignty of the Canal Zone.
Recent days: January 8 – January 7 – January 6
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