Births on February 13

Valentin Naboth

Born on February 13, 1523

Valentin Naboth, German astronomer and mathematician (d. 1593)

Valentin Naboth (also spelled Valentine Naibod or Nabod) (13 February 1523 – 3 March 1593), known by the latinized name Valentinus Nabodus, was a German mathematician, astronomer and astrologer.

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Valentin Naboth

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Events on 1523

6 Jun

Kalmar Union
Gustav Vasa, the Swedish regent, is elected King of Sweden, marking a symbolic end to the Kalmar Union. This is the Swedish national day.