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
Automotive industry by country petrol engined automobile was invented in Germany by Karl Benz. Furthermore, the four-stroke internal combustion engine used in most automobiles worldwide today was invented by Nikolaus Otto in Germany. In addition, the diesel engine was also invented by German Rudolf Diesel. Germany is famous for the high-performance and high-quality sports cars made by Porsche, and the cars of Mercedes, Audi and BMW are famous for their quality and technological innovation. Daimler-Benz's predecessor Daimler-Motoren-Gesellschaft was the industry's oldest firm, Daimler-Benz company dates from 1926. In 1998, it bought the American automobile manufacturer Chrysler, then sold out in 2007 at a heavy