Original sentence: In 1848 Madvig entered parliament as a member of the "Eider-Danish" part -- those who desired the Eider to be the boundary of the country.Johan Nicolai Madvig  (August 7, 1804 – December 12, 1886), was a Danish philologist and Kultus Minister
Edited sentence: In 1848 Madvig entered parliament as a member of the "Eider-Danish" part—those who desired the Eider to be the boundary of the country.Johan Nicolai Madvig (; August 7, 1804 – December 12, 1886), was a Danish philologist and Kultus Minister