Complex sentence: Mr. I. Lyakhov, a merchant from Yakutsk, discovered this island in 1770 by following the tracks of an enormous herd of reindeer across frozen sea ice.
Split into simpler sentences: Mr. I. Lyakhov, a merchant from Yakutsk, discovered this island in 1770. He discovered it by following the tracks of an enormous herd of reindeer across frozen sea ice.