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Zacharias Janssen Biography

Zacharias Janssen

(The Hague, 1588-Amsterdam, 1628 or 1631) Flemish optician who has been credited with the invention of the microscope and telescope.Zacharias Janssen was the son of an optician with his own workshop (named according to the sources Hans, Jan, Johan or Johannides Janssen) who died when Zacharias was four years old.His mother instructed him in the tasks of the family workshop, which the young Zacharias would direct until 1624.

Zacharias Janssen

Contrary to the Spanish rule over the Netherlands, in the workshop Zacharias Janssen carried out all kinds of illicit activities, such as counterfeiting of currency, which earned him two convictions from the authorities of the Empire; One of them went to death, but it would be commuted to him in 1618.When he was released from prison, impoverished, he had to declare the workshop bankrupt and saw his assets auctioned.

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