Although the theories of Isaac Newton, Jacques Cassini and Edmond Halley were well known, local scientists (such as Josef Player or Jan Slezina) were continued to work with the obsolete theories of Ptolemaios and Aristoteles.
In 1994 Peter Häberle received the honorary doctorate of the faculty of law of the Aristoteles-University Thessaloniki, in 2000, 2003 and 2007 from the respective faculties in Granada, the Catholic University of Lima and the University of Lisbon.