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Shortly after midnight on September 26, 1983, Lieutenant Colonel Stanislav Petrov sat alone in the commander's chair at Serpukhov-15, a secret Soviet military bunker south...
On Easter Sunday, 1939, Marian Anderson stood on the steps of the Lincoln Memorial and opened her mouth to sing. Seventy-five thousand people stretched across...
In 1892, German surgeon Julius Wolff published a discovery that still shapes modern medicine. He found that human bone is not static. It is alive,...
In 1873, Horatio Spafford put his wife and four daughters on a ship bound for England. He planned to join them later. Partway across the...
Long before television crews descended on Selma, Alabama, Amelia Boynton Robinson had been walking. Since the 1930s, she had gone door to door across Dallas...
In 1939, Marian Anderson was already one of the most celebrated contraltos in the world. Toscanini had told her that a voice like hers came...
On February 28, 1951, thirteen parents in Topeka, Kansas filed a lawsuit in federal court that would reshape the nation. Their complaint named the Board...
In 2010, neuroscientists at the Weizmann Institute of Science in Israel made a remarkable discovery about the human brain. Dr. Yadin Dudai and his team...
During basic training at Fort Jackson, South Carolina, the men of Company B, 77th Infantry Division, wanted Private Desmond Doss gone. They harassed him relentlessly...
In the 1950s, British scientists Alan Hodgkin and Andrew Huxley inserted tiny electrodes into squid nerve fibers to study how electrical signals travel through the...
In September 1973, the Soviet KGB seized a hidden copy of a manuscript that Aleksandr Solzhenitsyn had spent nearly a decade writing in secret. His...
In Victor Hugo's *Les Misérables*, there is a moment that stops readers cold. Jean Valjean has rebuilt his life. He is a respected mayor, a...
In 1984, an Australian physician named Barry Marshall did something his colleagues considered reckless, perhaps absurd. He believed stomach ulcers — long blamed on stress,...
In 1984, an Australian physician named Barry Marshall was certain he had discovered the true cause of most stomach ulcers — not stress or spicy...
On February 13, 1960, Diane Nash — a twenty-one-year-old Fisk University student from Chicago — walked into a downtown Nashville lunch counter with dozens of...
On the evening of December 1, 1955, forty-two-year-old Rosa Parks boarded the Cleveland Avenue bus in Montgomery, Alabama, after a long day stitching seams at...
In 1939, Marian Anderson was one of the greatest contraltos the world had ever heard. Toscanini himself said a voice like hers comes along once...
In 1892, German surgeon Julius Wolff published a discovery that still shapes orthopedic medicine today. Known as Wolff's Law, it reveals that human bone remodels...
In 1984, an Australian physician named Dr. Barry Marshall faced a problem no amount of argument could solve. He was convinced that stomach ulcers were...
When Dr. Walter Cannon at Harvard first described the fight-or-flight response in 1915, he uncovered something remarkable about human physiology. When we face danger, our...
In the early 1990s, scientists sealed themselves inside Biosphere 2, a massive glass enclosure in the Arizona desert designed to replicate Earth's ecosystems. The trees...
In 1984, Australian gastroenterologist Barry Marshall had a theory no one would believe. He was convinced that most stomach ulcers were caused by a spiral-shaped...
In 1984, Australian physician Dr. Barry Marshall faced a medical establishment that refused to believe him. He and his colleague Dr. Robin Warren had discovered...
Just after midnight on June 12, 1963, Medgar Evers stepped out of his Oldsmobile in the driveway of his home at 2332 Margaret Walker Alexander...