Complex sentence: Recent archaeological research demonstrates however that the transition of Oksywie culture into Wielbark culture was peaceful and its timing coincides with the appearance of new population of Scandinavian origins in previously uninhabited area ("no man's land") between the Oksywie and Przeworsk culture areas.
Split into simpler sentences: Recent archaeological research demonstrates however that the transition of Oksywie culture into Wielbark culture was peaceful. Its timing coincides with the appearance of new population of Scandinavian origins in previously uninhabited area ("no man's land") between the Oksywie and Przeworsk culture areas.