end of the 21st century after a plague had brought down civilization, was probably the ancestor of post-apocalyptic steampunk literature. Post-apocalyptic steampunk is set in a world where some cataclysm has precipitated the fall of civilization and steam power is once again ascendant, such as in Hayao Miyazaki's post-apocalyptic anime Future Boy Conan (1978, loosely based on Alexander Key's The Incredible Tide (1970)), where a war fought with superweapons has devastated the planet. Robert Brown's novel, The Wrath of Fate (as well as much of Abney Park's music) is set in a Victorianesque world where an apocalypse was set into motion by a time-traveling mishap. Cherie Priest's Boneshaker series is set in a world where a zombie apocalypse happened during the Civil War era. The Peshawar Lancers by S.M. Stirling is set in a post-apocalyptic future in which a meteor shower in 1878 caused the collapse of industrialized civilization. The movie 9 (which might be better classified as "stitchpunk" but was largely influenced by steampunk) is also set in a post-apocalyptic world after a self-aware war machine ran amok. Steampunk Magazine even published a book called A Steampunk's Guide to the Apocalypse, about how steampunks could survive should such a thing actually happen. Victorian In general, this category includes any recent science fiction that takes place in a recognizable historical period (sometimes an alternate history version of an actual historical period) in which the Industrial Revolution has already begun, but electricity is not yet widespread, "usually Britain of the early to mid-nineteenth century or the fantasized Wild West-era United States", with an emphasis on steam- or spring-propelled gadgets. The most common historical steampunk settings are the Victorian and Edwardian eras, though some in this "Victorian steampunk" category are set as early as the beginning of the Industrial Revolution and as late as the end of World War I. Some examples of this type include the novel The Difference Engine, the comic book series League of Extraordinary Gentlemen, the Disney animated film Atlantis: The Lost Empire, Scott Westerfeld's Leviathan trilogy, and the roleplaying game Space: 1889. The anime film Steamboy (2004) is another example of Victorian steampunk, taking place in an alternate 1866 where steam technology is far more advanced than reality. Some, such as the comic series Girl Genius, have their own unique times and places despite partaking heavily of the flavor of historic settings. Other comic series are set