Harley Davidson is an American motorcycle manufacturer founded in 1903 in Milwaukee, Wisconsin. Some key events in its history include producing motorcycles for the US Army in World War I and World War II, experiencing success in the 1920s followed by struggles during the Great Depression, and reviving its brand in the 1980s. The company's logo, known as the "Bar and Shield," was created in 1910 and registered in 1911. It features a black shield with orange outlines and lettering, with a horizontal white bar across the top.