Cultural history of mathematics according to the history, according to the logic of the sciences the effects of mathematics to the fine arts. Lexicon - Calendar - Histogram - Biographies- Games - Aforisms and sagacities More than 400.000 words ---450 biographies ---120 illustrations The title "There isn't any royal way" was told by Euklides, when Ptolemaios I had the idea to spend a lazy afternoon by getting know the geometry at once.