In 1854 he became a professor of Semitic languages at the University of Copenhagen .
In Leipzig he was a student of Heinrich Leberecht Fleischer ( 1801 - 1888 ) , and in Kiel he studied under Justus Olshausen ( 1800 - 1882 ) .
In 1854 student became a professor of Semitic languages at the University of Copenhagen .
In Leipzig he was a student of Heinrich Leberecht Fleischer ( 1801 - 1888 ) , and in Kiel he studied under Justus Olshausen ( 1800 - 1882 ) .