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Biography

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Today's Birthday: Sir Arthur Conan Doyle


Who Said?: “A definition is the enclosing of a wilderness of ideas within a wall of words.”


Year-by-Year: 1900–2006

Perpetual Calendar: View any month, any year, in the Gregorian calendar.


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Features
Black Scientists & Inventors
Black Scientists & Inventors
Benjamin Banneker, Thomas Jennings, and other exceptional scientists