1903 William S. Harley and Arthur Davidson make available to the public the first production Harley-Davidson® motorcycle. The bike was built to be a racer, with a 3-1/8 inch bore and 3-1/2 inch stroke. The factory in which they worked was a 10 x 15-foot wooden shed with the words "Harley-Davidson Motor Company" crudely scrawled on the door. Arthur's brother Walter later joins their efforts.
1903 Henry Meyer of Milwaukee, a schoolyard pal of William S. Harley and Arthur Davidson, buys one of the 1903 models directly from the founders.