Complex sentence: On December 27 1848 Thrane founded "Drammens arbeiderforening" (Drammen labour union) with 160 members and the folowing year several other labour unions were initiated under a national party organisation and in May Thrane printed the first edition of the paper "Arbeiderforeningernes Blad".
Split into simpler sentences: On December 27 1848 Thrane founded "Drammens arbeiderforening" (Drammen labour union) with 160 members. The folowing year several other local labour unions were initiated under a national organisation and in May Thrane printed the first edition of the unions paper "Arbeiderforeningernes Blad".