20h 26min, jan 1, 1921 y - He received the Nobel Prize in Physics “for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect” and he made some essential contributions to the early development of quantum theory.
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http://www.physicsoftheuniverse.com/scientists_einstein.htmlAdded to timeline:
Date:
20h 26min, jan 1, 1921 y
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~ 104 years ago