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Danzig, also known as Gdańsk in Polish, is the birthplace of Johannes Hevelius. A prominent astronomer of the 17th century, Hevelius made significant contributions to the field of astronomy during his lifetime. Born in 1611, Hevelius established an observatory in Danzig and conducted extensive observations of celestial bodies. His accurate observations and meticulous records earned him recognition as a leading astronomer of his time.