Creator and publisher of popular literary study guides CliffNotes.
Clifton Hillegass was born on 18 April, 1918
Today's Events: 27 April
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Gambling.com domain name sold
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Single ball computer mouse introduced by PARC
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Douglas Engelbart demonstrates the computer mouse
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Beethoven composes Für Elise
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John Milton sells copyright of Paradise Lost
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Eric Schmidt Birthday
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Valeri Polyakov Birthday
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Wallace Carothers Birthday
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Herbert Spencer Birthday
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Samuel Morse Birthday
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Ruth Handler Death Anniversary
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Konosuke Matsushita Death Anniversary
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J. Allen Hynek Death Anniversary
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Ferdinand Magellan Death Anniversary