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Emoji Calendar
December 23
What happened on this day
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Transistor demonstrated
79 years ago
Bell Labs scientists demonstrate the point-contact transistor in 1947, the foundation of modern electronics.
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Noche de Rábanos
129 years ago
Oaxaca's carvers turn oversized radishes into nativity scenes and whole villages for one night in the Zócalo, a competition first held in 1897.
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