Steampunk is a subgenre that explores alternate histories set in a Victorian era or similar time period with prominent steam powered technology. The name comes from "cyberpunk" but is set in a pseudo-Victorian world. Key influences and antecedents include the works of Jules Verne, H.G. Wells, and Mary Shelley which featured mad scientists and the dangers of pushing scientific boundaries. Nikola Tesla is also an important figure as his inventions are featured in works like Scott Westerfeld's Leviathan trilogy. Steampunk now extends beyond literature into other mediums like art, music, fashion, and even a lifestyle for some followers.