Simplify the following text for a Grade 14 native English-speaking person.
Original: He was also a member of the committee of Matica ilirska , a Croatian cultural society ( see Illyrian movement ) , in the Historical Society and in the editorial board of Neven , a literary magazine .
Simplified: He was also a member of the committee of Matica ilirska , a Croatian cultural society , in the Historical Society and in the editorial board of Neven , a literary magazine .