When his mother died in 1664, Niels Steensen inherited a sum of money which enabled him to go abroad again. He went to Paris, and was the guest of the prominent French academician, Melchisédec Thévenot, and met the elite of…


In February 1666 he travelled by way of Lyon, Monte Cenis, Torino and Genoa to Pisa and from there to his final destination, Florence.


In the summer of 1663 Niels Steensen travelled to Belgium, and visited Antwerp, Louvain, Gent, and Dunkerque. This picture shows the town hall of Louvain. After his holidays Niels Steensen returned to Leiden, and in early 1664 went home to…


In Gent he met the famous mathematician, Gregor of St. Vincent.