Raytheon Company was founded in 1922 in Cambridge, Massachusetts. In the more than 90 years since its founding, Raytheon Company has introduced numerous major technological advancements which have changed the course of American culture and world history. Among these innovations are the first commercial microwave ovens, the fathometer depth sounder, the mass production of magnetron tubes, early shipboard radar, the first successful missile guidance system, a space communications system, mobile radio telephones and the first combat-proven air defense missile system.