Complex sentence: Secondly there are significant problems of chronology stemming from several areas: first, there are the difficulties in dating common to all of Egyptian chronology but these are compounded due to synchronsyms with Biblical Archaeology that also contain heavily disputed dates.
Split into simpler sentences: Secondly there are significant problems of chronology stemming from several areas. First there are the difficulties in dating common to all Egyptian chronology but these are compounded here due to links to biblical archaeology that also contain heavily disputed dates.