Through the influence of Johann Wolfgang von Goethe ( 1749 -- 1832 ) , the ghazal became very popular in Germany during the 19th century ; the form was used extensively by Friedrich Rückert ( 1788 -- 1866 ) and August von Platen ( 1796 -- 1835 ) .
Through Johann Wolfgang von Goethe ( 1749 -- 1832 ) , the ghazal became very popular in Germany during the 19th century . The form was used by Friedrich Rückert ( 1788 -- 1866 ) and August von Platen ( 1796 -- 1835 ) .
Physicist Hans Bethe used characters of point group operations in his study of ligand field theory in 1929 . Eugene Wigner used group theory to explain the selection rules of atomic spectroscopy .