Romania and Bulgaria signed the European Union’s Treaty of Accession, the last step to joining the Union.
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New York state became the first to require license plates on automobiles.
The Thornton Affair, a skirmish between American and Mexican soldiers in Texas, started a chain of events that led to the Mexican-American War.
Kathmandu, Nepal, was devastated by a major earthquake.
A highwayman, Nicolas Pelletier, was the first man to be executed by the guillotine in Paris, France.
Porsche was officially added to the commercial register in Germany.
