Launch of the SS Saint Paul
The SS Saint Paul was launched on April 10, 1895. It was the first commercial ship commissioned for the Spanish-American War and later served during World War I.
This Day in History
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Birth of Charles Steinmetz
Mathematician and electrical engineer Charles Proteus Steinmetz was born Karl August Rudolph Steinmetz on April 9, 1865, in Breslau, Province of Silesia, Prussia (present-day Wrocław, Poland). Steinmetz developed the electrical theories that allowed for the expansion of the electric power industry. He was also known as the “Forger of Thunderbolts” and the “Wizard of Schenectady.”
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Birth of Melvin Calvin
Biochemist Melvin Calvin was born on April 8, 1911, in St. Paul, Minnesota. He earned the 1961 Nobel Prize for Chemistry for his discover of the Calvin cycle – the conversion of carbon dioxide into organic molecules during photosynthesis.
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Birth of Walter Camp
The “Father of American Football,” Walter Chauncey Camp, was born on April 7, 1859, in New Britain, Connecticut. Camp is credited with developing the rules and techniques that set American football apart from British rugby.
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HemisFair ’68
On April 6, 1968, HemisFair ’68 opened in San Antonio, Texas. It was the first official international exposition held in the Southwestern US. The fair also honored the 250th anniversary of the founding of San Antonio.
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First Presidential Veto
On April 5, 1792, George Washington used the first presidential veto in our country’s history. It was to turn down a bill that he felt unconstitutionally gave some states more members in the House of Representatives than the Constitution would allow.
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Birth of Dorothea Dix
Dorothea Lynde Dix was born on April 4, 1802, in Hampden, Maine. She spent much of her life improving and establishing new mental asylums. Dix also served as the Superintendent of Army Nurses during the Civil War.
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First U.S. Stamp Printed Outside America
On April 3, 1991, the USPS issued its first stamp to printed outside the US. News of the stamp’s printing outside of America set off a firestorm of criticism and debate that made it all the way to Congress.
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Birth of Maria Sibylla Merian
Naturalist and artist Maria Sibylla Merian was born on April 2, 1647, in Frankfurt-am-Main, Germany. Merian spent her life studying insects and plants and capturing them in beautifully detailed paintings and drawings.
