Complex sentence: Starting in 1948, the orthographies used in Norway and Sweden were combined into a single orthography entitled the "Bergsland-Ruong orthography", which, however, was not greatly used in Norway.
Split into simpler sentences: Starting in 1948, the orthographies used in Norway and Sweden were combined into a single orthography entitled the "Bergsland-Ruong orthography". This orthography, however, was not greatly used in Norway.