Johannes Praetorius
Johannes Praetorius or Johann Richter (1537 – 27 October 1616) was a German mathematician and astronomer.
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1Other Authors: “...Praetorius, Johannes 1630-1680...”
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Johannes Praetorius or Johann Richter (1537 – 27 October 1616) was a German mathematician and astronomer.
Provided by Wikipedia