Complex sentence: From 17 May 1905 he was the first editor-in-chief of the newly established Labour Party newspaper "Fremtiden" in Drammen, where he contributed to defining local journalism as a genre.
Split into simpler sentences: From 17 May 1905 he was the first editor-in-chief of the newly established Labour Party newspaper "Fremtiden" in Drammen. Here he contributed to defining local journalism as a genre.