In character, the first Ohioans exhibited qualities that seemed typical of Americans in general. "The spirit of the place was large, vigorous, and buoyant," Walter Havighurst writes of the colorful early days when settlers attached forests with ax and fire. "Keep the ball rolling" and "Give it a try" became Ohio slogans as boosterism surged, fields were planted, towns were founded, and canals were dug. Steamboats, steel plants, and the rubber industry brought growth to Cleveland, Cincinnati, and other major cities, making Ohio a commercial and industrial as well as an agricultural heartland.