He held no fewer than three chairs (Botany, Medicine and Chemistry). Herman Boerhaave (1668-1738) was an all-rounder: doctor, anatomist, botanist, chemist, humanist and researcher. His contemporaries called him the teacher of Europe. He was also Rector, and thus a predecessor of Carel Stolker. Soon after its foundation, the University attracted important scholars, including the humanists Justus Lipsius and Josephus Scaliger.