Baedeker to have three of his four sons − Hans, Ernst and Dietrich − beside him in the firm, as editors and writers. Karl Baedeker III, the fourth son, entered academia and rose to become a professor of physics at the University of Jena. He was killed in action at the Battle of Liège in August 1914. It was his son Karl Friedrich who revived Verlag Karl Baedeker after the Second World War. During his reign, which lasted over 50 years, Fritz produced 73 new "Baedekers", as they came to be known universally. The Baedeker travel guides became so popular that
Baedeker Blitz Goebbels reported that Hitler intended to "repeat these raids night after night until the English are sick and tired of terror attacks" and that he "shared [Goebbels'] opinion absolutely that cultural centres, health resorts and civilian centres must be attacked... there is no other way of bringing the English to their senses. They belong to a class of human beings with whom you can only talk after you have first knocked out their teeth." The raids were referred to on both sides as "Baedeker raids", derived from a comment by a German propagandist. Baron Gustav Braun von Stumm, a spokesman