Complex sentence: In 1805 Harrison built a plantation-style home near Vincennes that he named Grouseland, alluding to the birds on the property; the thirteen-room home was one of the first brick structures in the territory.
Split into simpler sentences: In 1805 Harrison built a plantation-style home near Vincennes that he named Grouseland, alluding to the birds on the property. The thirteen-room home was one of the first brick structures in the territory.