Mariner 10 Makes First Fly By of Mercury
On March 29, 1974, Mariner 10 became the first space probe to fly by Mercury. It would eventually send back over 2,700 photos, capturing nearly half of the planet’s surface.
This Day in History
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First Stamp Canceling Machine
On March 28, 1876, a Boston inventor received a patent that would transform the way America handled its mail. The Leavitt canceling machine didn’t just speed up a mundane postal task — it helped launch the modern era of mail processing. And it arrived at exactly the right moment.
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Rise of Long-Distance Telephones
On March 27, 1884, the first long-distance telephone call between New York and Boston proved that voices could travel hundreds of miles over a wire. That single connection helped shift the telephone from a local novelty into a system capable of linking entire regions.
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National Science Appreciation Day
On March 26, 1953, Dr. Jonas Salk announced the first successful polio vaccine, offering hope against one of the most feared diseases of the 20th century. That moment now anchors National Science Appreciation Day, a modern observance that highlights how careful research and tested discoveries can change lives.
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Death of Ida B. Wells
On March 25, 1931, civil rights leader, journalist, and suffragette Ida B. Wells died at the age of 68. Her life’s work—documenting injustice with facts and confronting violence with fearless reporting—left a detailed record of a nation struggling with race and equality.
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Elvis is Inducted into the Army
On March 24, 1958, Elvis Presley stepped away from the spotlight and into a US Army uniform. At the peak of his fame, the nation’s biggest rock and roll star chose to serve like any other draftee.
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First Commercial Safety Elevator
On March 23, 1857, the first commercial safety elevator was installed in New York City by the Otis Company. This new design solved a long-standing danger and made it practical for people—not just cargo—to move safely between floors in tall buildings.
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Death of Stephen Decatur
On March 22, 1820, naval hero Stephen Decatur was mortally wounded in a duel with a former friend and fellow officer. The shocking encounter ended the life of one of America’s most respected naval leaders and revealed how personal rivalries could turn deadly, even among national figures.
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Death of General Joseph E. Johnston
On March 21, 1891, General Joseph E. Johnston—who had served both the United States and the Confederacy—died after a final act of respect for a former enemy. His life traced the divided loyalties of the Civil War, and even in death, it reflected a measure of reconciliation between North and South.
