Complex sentence: It was in this period that the Feasts of the dead were most impressive as all ties were reaffirmed by many gifts and the presence of foreigners encouraged the Hurons to impress their visitors.
Split into simpler sentences: It was in this period that the Feasts of the dead were most impressive. The ties were reaffirmed by many gifts, and the presence of foreigners encouraged the Huron to impress their visitors.