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First Harley motorcycle inveneted with a coal engine when the two Harley brothers and a friend Arthur Davidson join to make Harley Davidon.
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William Harley creates the first blueprint of an engine designed to fit on a bycicle.
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William Harley and Arthur Davidson make the first bike from Harley Davidson for racing. They built it inside of a 13 x 15 foot room.
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First Harleys sold in Chicago, one of the first three models ever made.
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Harley-Davidson Motor Company introduces its first V-twin powered motorcycle. The bike produces seven horsepower. Best induring icon for Harley Davidson since 1876.
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In 1920, Harley Davidson is the biggest motorcycle company yet, and could possibly be, for a very long time.
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All of Harley-Davidson's remaining American competition is now gone except Indian (Hendee Manufacturing). Indian and Harley-Davidson are the only two American motorcycle manufacturers until 1953.
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World War II takes place and almost all motorcycle industries were suspended, but they also used some motorcycles in the war, but they stopped when they found out motorcycles were hard to control.
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Hydraulic front forks first appear on the new Hydra-Glide models.
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The first rear brakes and hydraulic rear suspensions appear on the Duo-Glide.
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The Harley-Davidson Topper motor scooter is introduced and is the only scooter platform the Motor Company ever produced.
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Harley-Davidson merges with the American Machine and Foundry Company (AMF), a longtime producer of leisure products.
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First year of Harley-Davidson snowmobile production.
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Harley-Davidson celebrates its 85th Anniversary with a Homecoming in Milwaukee, attended by over 60,000 enthusiasts.
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Harley-Davidson celebrates its 95th Anniversary. 140,000 plus riders are warmly received by Milwaukee to help with the celebration.
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Davidson, Harley. "Timeline 1930's | Harley-Davidson Australia/New Zealand." Timeline 1930's | Harley-Davidson Australia/New Zealand. Harley Davidson, 2012. Web. 27 Sept. 2012. http://www.harley-davidson.com/wcm/Content/Pages/H-D_History/history_1930s.jsp?locale=en_AU.