The history of the climbs started with French-born natural scientist Belsazar Hacquet, from 1773 professor of anatomy at the Academy of Ljubljana. He travelled the Eastern Alps from 1779 to 1781 and published an itinerary in 1783, describing the Glokner mountain and stating that it had not been climbed yet. He estimated the mountain's height with converted and left an engraving illustrating Grossglockner and Pasterze, the first known depiction of the mountain.