Complex sentence: Recent archaeological excavations have revealed the ruins of a cabin in Hafnir on the Reykjanes peninsula, and carbon dating indicates that it was abandoned somewhere between 770 and 880, suggesting that Iceland was populated well before 874.
Split into simpler sentences: Recent archaeological excavations have revealed the ruins of a cabin in Hafnir on the Reykjanes peninsula. Carbon dating indicates that it was abandoned somewhere between 770 and 880, suggesting that Iceland was populated well before 874.