quality:correction
Education

He was born to Friedrich Conrad Röntgen, a German merchant and cloth manufacturer, and Charlotte Constanze Frowein. When he was aged three, his family moved to the Netherlands, where his mother's family lived. Röntgen attended high school at Utrecht Technical School in Utrecht, Netherlands. He followed courses at the Technical School for almost two years. In 1865, he was unfairly expelled from high school when one of his teachers intercepted a caricature of one of the teachers, which was drawn by someone else.

Without a high school diploma, Röntgen could only attend university in the Netherlands as a visitor. In 1865, he tried to attend Utrecht University without having the necessary credentials required for a regular student. Upon hearing that he could enter the Federal Polytechnic Institute in Zürich (today known as the ETH Zurich), he passed the entrance examination and began his studies there as a student of mechanical engineering. In 1869, he graduated with a PhD from the University of Zurich; once there, he became a favourite student of Professor August Kundt, whom he followed to the newly founded German Kaiser-Wilhelms-Universität in Strasbourg.