Karl Baedeker 'father of modern tourism'. In 1846, Baedeker introduced his famous 'star' ratings (for sights, attractions and lodgings) in the third edition of his "Handbuch für Reisende durch Deutschland und den Oesterreichischen Kaiserstaat" - an idea based on the Murray guides star system. This edition was also his first 'experimental' red guide. He also decided to call his travel guides 'handbooks', following the example of John Murray III. Baedeker's early guides had tan covers, but from 1856 onwards, Murray's red bindings and gilt lettering became the familiar hallmark of all Baedeker guides as well, and the content became famous for its
Karl Baedeker (scientist) the first transparent conducting oxide (TCO) thin film, cadmium oxide (CdO), in 1907. TCOs are now ubiquitous in optoelectronics and a multibillion-dollar industry. Baedeker was killed in action in August 1914 during World War I at the Battle of Liège . His son, Karl Friedrich Baedeker revived the Baedeker publishing house after the Second World War. In 2014, a conference on transparent conducting oxides was held in Leipzig to commemorate the centenary of Baedeker's death. A paper on the life and work of Baedeker was published in the proceedings of the meeting. Karl Baedeker (scientist) Karl Wilhelm Sali Baedeker (3