Complex sentence: Moreover, Vocel contributed to the popularity and development of Czech archeology through his 1854 establishment of the specialized organ "Archaeological Monuments," in which he celebrated Czech history from its mythical beginnings to the Hussite movement.
Split into simpler sentences: Moreover, Vocel contributed significantly to the development of Czech archeology through his establishment of the specialized magazine "Archaeological Monuments" in 1854. In his own literary works he celebrated Czech history from its mythical beginnings to the Hussite movement.