sentences:  Illinois was made a state in 1818 and white settlers came in and opened some of the burial mounds in the former Native American lands.Judge John G. Henderson of Winchester, Illinois, was impressed by beautifully carved stone smoking pipes a friend showed him which were obtained from burial mounds in Naples, Illinois.Accordingly, he and a Mr. Merrill, in 1876, did some excavations and documentation of some of the Naples mounds in which were found a raccoon and a turtle pipe, copper axes, and human skeletal remains.