Complex sentence: Abraham Nichols is credited with being the first Englishman to permanently settle in Trumbull around 1690 or 1700, depending on the source; others soon followed him into the wilderness, to "establish mills, churches, and schools".
Split into simpler sentences: Abraham Nichols is credited, by some, with being the first Englishman to settle in Trumbull around 1690 or 1700, depending on the source. It has been said that others soon followed him into the wilderness to; "establish mills, churches, and schools".