births
Petrus Apianus, German mathematician and astronomer (died 1557)
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Petrus Apianus
German astronomer, mathematician, and cartographer (1495–1552)
Petrus Apianus, also known as Peter Apian, Peter Bennewitz, and Peter Bienewitz, was a German humanist, known for his works in mathematics, astronomy and cartography. His work on "cosmography", the field that dealt with the earth and its position in the universe, was presented…Source: Wikipedia (CC BY-SA)
April 16
Day of the year
April 16 is the 106th day of the year in the Gregorian calendar; 259 days remain until the end of the year.Source: Wikipedia (CC BY-SA)