The first motorcycles were produced in the late 19th century, on both sides of the Atlantic. Some of the earliest efforts were simply small motors attached to a bicycle. In the 20th century, hundreds of makers produced motorcycles of all varieties, including Indian, Harley-Davidson, Ducati, Crocker, BMW, Triumph, Honda and more.
Two American companies, Indian and Harley-Davidson, dominated the market in the U.S. until the waves of British and Japanese imports in the 1950s and 1960s respectively. While Indian ultimately failed, Harley-Davidson made a comeback in the 1980s, and its vintage 'hogs' are now a favorite of riders and collectors.