Steampunk is a subgenre of science fiction or science fantasy that incorporates technology and aesthetic designs inspired by 19th-century industrial steam-powered machinery.[1][2] Although its literary origins are sometimes associated with the cyberpunk genre,[3] steampunk works are often set in an alternative history of the 19th century's British Victorian era or American "Wild West", in a future during which steam power has maintained mainstream usage, or in a fantasy world that similarly employs steam power. However, steampunk and Neo-Victorian are different in that the Neo-Victorian movement does not extrapolate on technology and embraces the positive aspects of the Victorian era's culture and philosophy.[citation needed]