1804-1877 1817-1892 1818-1892 1819-1898 1879-1958 19thcentury 20thcentury authors authorsandpublishers bernhard biography choreographers choreography correspondence correspondencedecker correspondencefontane correspondencejhering correspondencewindscheid criticismandinterpretationlaban dance dancers education german germany greatbritain history hungary laban lawteachers moderndance movement movementnotation physicaleducationandtraining psychologyof studyandteaching tanztheater theodor