Samuel Latham Mitchill (August 20, 1764 – September 7, 1831) was a US physician, naturalist and Senator. August 20 is the 232nd day of the year (233rd in leap years) in the Gregorian Calendar. ... 1764 was a leap year starting on Sunday (see link for calendar). ... September 7 is the 250th day of the year (251st in leap years). ... 1831 was a common year starting on Saturday (see link for calendar). ... ... Physician examining a child The word physician should not be confused with physicist, which means a scientist in the area of physics. ... Natural history is an umbrella term for what are now usually viewed as a number of distinct scientific disciplines. ... A senate is a deliberative body, often the upper house or chamber of a legislature. ...

Mitchill was the author of The Fishes of New-York, described and arranged (1815). The Battle of New Orleans 1815 was a common year starting on Sunday (see link for calendar). ...