During the 1960s, the moped craze arrived in the United States, the United Kingdom, and other countries. Mopeds had been produced for years in France and Italy, but were largely unknown in other countries. The moped's surge in popularity was motivated by the arrival of new machines produced in Japan by Honda, Yamaha, and other manufacturers, which could be operated without a driver's license and with a minimum of effort to meet existing regulation by the authorities. The new moped designs were really low-powered motorcycles, equipped with pedals largely to meet legal requirements. Most could be pedaled only with difficulty over short distances on level ground.