The year 1542 in science and technology included a number of events, some of which are listed here.
Botany Leonhart Fuchs publishes his new herbal De historia stirpium commentarii insignes in Basel.
Exploration Juan Rodríguez Cabrillo explores the coast of California.
Physiology and medicine Jean Fernel publishes De naturali parte medicinae, presenting human physiology as integral to the study of medicine.
Births approx. date – Peder Sørensen, Danish physician (died 1602)
Deaths August – Peter Henlein, Nuremberg watchmaker (born 1479/80)
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