In the meantime, the mainland area was being settled by incomers, the  Five Great Clans : Tang, Hau, Pang, Liu, and Man.
Meanwhile, the mainland was empty of population.
mnli hypothesis: Meanwhile, the mainland was empty of population. premise: In the meantime, the mainland area was being settled by incomers, the  Five Great Clans : Tang, Hau, Pang, Liu, and Man.