Delaware Ratifies the U.S. Constitution (1787)
Delaware Ratifies the U.S. Constitution (1787): Delaware became the first state to ratify the U.S. Constitution on December 7, 1787. This milestone marked the beginning of the process for establishing…
Royal Opera House Opening (1732)
Royal Opera House Opening (1732): The Royal Opera House, a major performing arts venue in London, opened its doors on December 7, 1732. Since its inauguration, it has become one…
U.S. Declares War on Austria (1917)
U.S. Declares War on Austria (1917): The United States declared war on Austria-Hungary on December 7, 1917, becoming the 13th country to do so during World War I. This action…
Pearl Harbor Attack (1941): A Day That Changed History
Pearl Harbor Attack (1941): On December 7, 1941, Japanese bombers launched a surprise attack on the U.S. naval base at Pearl Harbor in Hawaii. This devastating strike resulted in significant…