1676 – The acclaimed Danish astronomer Ole Rømer makes public the first quantitative measurements of the speed of light.
1789 – North Carolina ratifies the United States Constitution and is admitted as the 12th U.S. state.
1791 – French navigator Etienne Marchand reaches China after a record Pacific crossing of 60 days.
1877 – US inventor Thomas Edison makes public his invention of the phonograph, a machine that records and plays sound.
1894 – Port Arthur, China, falls to the Japanese, a major victory of the First Sino-Japanese War. Japanese troops are accused of massacring the remaining inhabitants.
1920 – In the Irish War of Independence, in Dublin, 31 people are killed in what will be known as ‘Bloody Sunday’.
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