The hundred-year history of The Timken Company is one of the great success stories of U.S. manufacturing. Born in 1899 in a St. Louis, Missouri, carriage factory where Henry Timken developed and patented the Timken tapered roller bearing, the company has expanded to become a global organization and a leader in two key industries: bearings and steel. In Timken: From Missouri to Mars--A Century of Leadership in Manufacturing, historian Bettye Pruitt traces the evolution of this exceptional organization and the role its bearings and specialty alloy steels have played in the advancement of essential technology from steel mills and machine tools to computer disk drives and spacecraft.