Who hasn't heard or read H.G. Wells "War of the Worlds" or one of my childhood favorite "Wild Wild West." It probably explains my addiction to various gadgets and love of romance fiction or cyperpunk stories by William Gibson.
Steampunk is a sub-genre of science fiction and speculative fiction, frequently featuring elements of fantasy, that came into prominence in the 1980s and early 1990s. The term denotes works set in an era or world where steam power is still widely used — usually the 19th century, and often Victorian era England — but with prominent elements of either science fiction or fantasy, such as fictional technological inventions like those found in the works of H. G. Wells and Jules Verne
Steampunk is often associated with cyberpunk and shares a similar fanbase and theme of rebellion, but developed as a separate movement (though both have considerable influence on each other).