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On this day, September 26, 1905, Albert Einstein introduced the special theory of relativity.
https://en.wikipedia.org/wiki/September_26• 1905 – Albert Einstein publishes the third of his Annus Mirabilis papers, introducing the special theory of relativity.
Tue Sep 26, 2023: On this day, September 26, 1905, Albert Einstein introduced the special theory of relativity.
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It's fascinating (and not too numbery which is a plus for me 
)
https://www.coursera.org/learn/einstein-relativity