Black Tot Day is observed annually on July 31st, commemorating the end of the British Royal Navy's daily rum ration, a tradition that lasted over two centuries. The practice began in 1655 after the British captured Jamaica, where rum became the sailors' daily beverage, officially codified in 1731. Sailors would gather for 'Up Spirits' to receive their allocated tot of rum, which served as both a morale booster and a form of medicine. However, as naval warfare modernized, the consumption of high-strength spirits became incompatible with service demands, leading to the abolition of the rum ration in 1970. Celebrations typically include raising a toast with rum, learning about naval history, hosting themed parties with naval attire and traditional drinks, or visiting naval museums that may hold special events for the day. While it is a celebration of naval history, participants are encouraged to enjoy responsibly.