Elder son of Clovis and a Rhineland princess (Ripuaire), Thierry took part in the battle of Vouillé and the fight against the Visigoths. He inherited the kingdom of Reims on the death of his father in 511, the territory most exposed to foreign threats. His son Theodebert I inherited his kingdom which would bear the name of Austrasia.
If the Polish canon (member of the clergy) Copernic began studying art, medicine and studied economics, he was passionate about astronomy, which he studied at the University of Bologna. Back in Poland, he remains a canon but devotes himself in parallel to this science. He discovers that, contrary to