The year 1539 in science and technology included many events, some of which are listed here.
Botany
Hieronymus Bock publishes the first edition of his flora of Germany, the Kreutterbuch, adopting a new system of classification based on his observations.
Johannes Baptista Montanus is appointed professor of medicine at the University of Padua where he introduces clinical medicine, including bedside examination, into the curriculum, integrating theory and practice.[2]