Found in the Arctic and North Atlantic Oceans, the narwhal is small whale known for the single, tightly spiraled tusk—up to 9 ft (2.7 m) long—that protrudes from the upper jaw of males as well as some females of the species. The tusk is an overgrown, nerve-rich incisor tooth and may be used as a sense organ or to attract mates. Now hunted by native peoples for its meat, the narwhal was formerly killed for its tusk, which was believed to have magical properties and was sold for centuries as what?
Ralph Waldo Emerson
Back in the day
Miller was an American swing-era jazz musician and bandleader and one of the best-selling recording artists from 1939 to 1942. A freelance musician in New York City, Miller formed his own big band in 1938, earning fame for songs like "Moonlight Serenade." During WWII, he joined the military and entertained the troops as leader of the US Air Force band. While flying from England to Paris, his plane disappeared over the English Channel. Miller was never found. What may have happened to the plane?
Born on a day like today
Eiffel was a French engineer who designed the Eiffel Tower as the entrance arch for the for the 1889 Paris Exhibition. Though it was supposed to be dismantled after the fair, the tower became a landmark and is today the world's most visited paid monument. Prior to this massive undertaking, Eiffel established his reputation by constructing a series of ambitious railway bridges, including the span across the Douro at Oporto, Portugal. In 1881, he designed the internal framework for what structure?