The RMS Titanic was launched from Belfast, where it was also constructed.
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Harry Potter and the Prisoner of Azkaban, the 3rd film based on the books by J. K. Rowling, was released in UK cinemas.
English civil servant Samuel Pepys recorded his last diary entry.
The Discovery Space Shuttle was launched from the Kennedy Space Center on mission STS-124.
Imperial Japan began a series of submarine attacks on Sydney.
The video for Psy's Gangnam Style reached two billion views on YouTube.
