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"Motorcycling History Much of the attention paid to Harley-Davidson innovations over the last 97 years usually goes to things like the &amp;#8220;Knucklehead&amp;#8221; engine, Softail..."^^<http://www.w3.org/2001/XMLSchema#string>
<https://ultimatemotorcycling.com/2010/03/03/harley-davidson_historical_innovations/>