What did the history teacher asked Einstein

The history teacher punished Einstein by making him stay for an extra period on that day. He said that he did not want a lecture from Einstein on education and he believed that even that extra period would do nothing to change him from being an insolent boy. Neither would it do him any good nor would it do the school any good but he had to be punished. ?Mr Braun emphasized upon factual information such as remembering dates. ?The history teacher did not appreciate Albert's independent mode of enquiry and thirst for actual learning and not just studying. Mr Braun was cold and cruel and considered the questions that Albert asked to be an affront towards his credentials as a teacher.