Harley-Davidson Motor Company was founded in 1907 in Milwaukee, USA by William S. Harley and Arthur Davidson along with the Davidson brothers. It became the largest motorcycle manufacturer in the world by 1920 after providing over 15,000 motorcycles to World War 1. Today, Harley-Davidson has over 3000 dealers worldwide, sold over 70,000 motorcycles in 2012, earns over $5.2 billion annually, and has a huge global fan base.