Dom Pedro I, the founder and first ruler of the empire of Brazil, declared Brazil’s independence from Portugal.
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New York's district attorney returned 58 stolen pieces of art to Italy, worth $19 million.
El Salvador established Bitcoin as legal tender.
The Treaty of The Hague was signed between the German Empire, Great Britain, and The Netherlands.
The Blitz began.
Boston, Massachusetts, was founded by Governor Winthrop.
