US best-selling cookie “Oreo” trademarked its name.
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Anne Miller became the first American patient to be treated with penicillin.
Google employee Emma Haruka Iwao broke a world record by calculating Pi right down to 31.4 trillion digits!
President Warren G. Harding became the first president to pay taxes in the US.
American inventor Eli Whitney was granted a patent for a ground-breaking new type of cotton gin.
US president Bill Clinton tore his knee and required surgery.
