ARKANSAS CITY, Kan. (AP) — A Wichita State University professor says a recent archaeological dig in south-central Kansas has turned up evidence of a Native American settlement dating back more than 400. The Arkansas City Traveler reports that Don Blakeslee, archaeologist and Wichita State professor of anthropology, led a recent five-day dig in Arkansas City. He says researchers found iron and lead balls that are the same type of ammunition shot from cannons and muskets by Spanish conquistadors who explored the Great Plains in the 16th and 17th centuries. Blakeslee says the evidence supports his theory that Arkansas City is the site of the 5-mile-long town of Etzanoa, which was inhabited by about 20,000 ancestors of the Wichita Indians about 400 years ago.