Complex sentence: The hamlet now called Jamesport was first settled in the 1690s and originally was called Aquebogue and later Lower Aquebogue when another hamlet was established to the west called Upper Aquebogue.
Split into simpler sentences: The hamlet now called Jamesport was first settled in the 1690s and originally was called Aquebogue. It became Lower Aquebogue when another hamlet was established to the west called Upper Aquebogue.