Elisabetha Schneider
Parents
Spouse
Heinrich Ruehl
Heinrich Ruehl
1627 - 1689
Children
Anna Catherine Ruehl
Anna Catherine Ruehl
1657 - 1710

1636


Jul

1657


Nov 8
Age: 21y
1657 Christiaan Huygens writes the first book to be published on probability theory, De ratiociniis in ludo aleae ("On Reasoning in Games of Chance").

1686


Jun 9
1686 English historian and naturalist Robert Plot publishes The Natural History of Staffordshire, a collection of illustrations and texts detailing the history of the county. It is the first document known to mention crop circles and a double sunset.

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