Samuel Clarke (1675)

Clarke was an English philosopher and clergyman who advocated the theories of Isaac Newton. Clarke maintained that ethical law is as constant as mathematical law. His published works include many translations, lectures, sermons, and commentaries. In 1717, his correspondence with German philosopher Gottfried Leibniz was published. In it, he argues with Leibniz in defense of the existence of absolute space—physical space independent of what occupies it. Why did their discussion abruptly end? Discuss

The Old Summer Palace

Known in China as the Gardens of Perfect Clarity, the Old Summer Palace was a complex of palaces and gardens built in the 18th and early 19th centuries near the walls of Beijing. Hundreds of invaluable Chinese art masterpieces and antiquities were stored in its halls, making the Imperial Gardens one of the largest museums in the world. In 1860, during the Second Opium War, British and French troops looted and destroyed the gardens. Why have the Chinese decided not to rebuild the complex? Discuss

United Air Lines Chesterton Crash (1933)

In 1933, a Boeing 247 operated by United Air Lines exploded mid-flight and crashed near Chesterton, Indiana. The crash killed all seven people aboard, including four passengers and three crew members. Investigators concluded that a bomb caused the explosion, making this the first proven act of air sabotage in the history of commercial aviation. No suspect has ever been identified or charged in the incident. How did investigators determine that a bomb caused the explosion? Discuss

Thelonious Monk (1917)

One of the key innovators of modern jazz, Monk worked as a pianist in the early 1940s at Minton’s Playhouse and other clubs where the rudiments of the new jazz style were being developed. Known for his highly idiosyncratic, percussive playing, he performed with many notable jazz musicians, including Dizzy Gillespie, before recording under his own name beginning in 1947. Monk is one of only five jazz musicians to have been featured on the cover of Time magazine. Who are the other four? Discuss

The Great Hurricane of 1780 Forms (1780)

The Great Hurricane of 1780 was the deadliest Atlantic hurricane in recorded history. Coming during a very active hurricane season, the storm formed on October 9 and struck Barbados the next day with winds possibly exceeding 200 mph (320 km/h). It then passed over several other islands, leaving mass destruction in its wake. Thousands of deaths were reported on each island, and more than 20,000 people had died by the time the storm dissipated. How did the hurricane impact the American Revolution? Discuss

Walter O'Malley (1903)

Born in New York City, O’Malley was the owner of the Brooklyn and Los Angeles Dodgers baseball team from 1950 to 1979. In 1958, he moved the Dodgers from Brooklyn to Los Angeles and helped to coordinate the move of the New York Giants to San Francisco at a time when there were no teams west of Missouri. Though ultimately successful, the transplantation of the Dodgers made O’Malley a target of vilification by Brooklyn fans. However, some blame what powerful official for the team’s move? Discuss

The Capgras Delusion

The Capgras Delusion is a rare disorder in which a person holds the delusional belief that an acquaintance—usually a spouse or other close family member—has been replaced by an identical impostor. Found in patients diagnosed with schizophrenia, dementia, or those suffering from a brain injury, the disorder is named after Joseph Capgras, the French psychiatrist who first described it in 1923. What have researchers since learned about the disorder? Discuss