A list of events in the 1800s, otherwise known as the Nineteenth Century, related to Pirates of the Caribbean.
- November 13 – Robert Louis Stevenson born. Note: While he isn't affiliated with the franchise, his 1881 novel Treasure Island was referenced throughout the Pirates franchise. Chief among them, a sea shanty from the novel was a big part of the inspiration for Yo Ho (A Pirate's Life for Me).
- Unknown date – The rank Lieutenant Commander was made a distinct rank. Note: While the rank appeared in Pirates of the Caribbean: On Stranger Tides (which takes place circa 1750), but in real-world history, the rank was first used by the US Navy in 1862.
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