On April 23, 1968, the campus of Columbia University became one of the most visible flashpoints of domestic unrest during the Vietnam War, as student protesters seized control of multiple administration buildings and effectively shut down the university. The occupation did not erupt spontaneously;…
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On April 23, 1635, in the fledgling Puritan settlement of Boston, the foundations of American public education were laid with the establishment of the Boston Latin School. The first public school in what would become the United States, Boston Latin was created not only…
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On April 22, 1836—one day after the decisive clash at the Battle of San Jacinto—the Texas Revolution reached its true turning point not in combat, but in recognition. In the chaotic aftermath of victory, forces under Sam Houston identified and captured the man who…
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At precisely noon on April 22, 1889, the American West erupted into motion. The sharp blast of a bugle, followed by the crack of pistols and the thunder of galloping hooves, signaled the beginning of one of the most frenzied land grabs in U.S.…
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On April 21, 2014, officials in Flint made a fateful decision that would trigger one of the most consequential public health failures in modern American history: the city switched its drinking water source from treated Lake Huron water to the corrosive Flint River. The…
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In the waning light of April 21, 1836, a force of approximately 900 Texian soldiers led by General Sam Houston launched a surprise assault on a larger, more experienced Mexican army under General Antonio López de Santa Anna. The clash, known as the Battle…
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On April 20, 1861, just days after the outbreak of the American Civil War, Colonel Robert E. Lee resigned his commission in the United States Army, ending more than three decades of federal service and setting in motion one of the most consequential personal…
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At around 9:45 p.m. local time on April 20, 2010, a series of explosions shook the Deepwater Horizon, an offshore rig operating 41 miles off Louisiana’s coast. Leased by BP and run by Transocean, the rig was drilling a deep exploratory well in the…
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On April 19, 1775, the opening shots of the American Revolutionary War at Lexington and Concord—later immortalized as “the shot heard around the world”—gave way, almost immediately, to something more consequential than a single day’s fighting. As British regulars retreated into Boston under constant…
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On April 18, 1946, Jackie Robinson stepped onto the field for the Montreal Royals and, in doing so, altered the trajectory of American professional sports. His regular season debut in the International League marked the first time in the modern era that a professional…
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