Phantasmagoria

Phantasmagoria (), alternatively fantasmagorie and/or fantasmagoria, was a form of horror theatre that (among other techniques) used one or more magic lanterns to project frightening images – such as skeletons, demons, and ghosts – typically using rear projection onto a semi-transparent screen to keep the lantern out of sight. Mobile or portable projectors were used, allowing the projected image to move and change size on the screen, while multiple projecting devices allowed for quick switching of different images. In many shows, the use of spooky decoration, total darkness, (auto-)suggestive verbal presentation, and sound effects were also key elements. Some shows added a variety of sensory stimulation, including smells, smoke and electric shocks. Elements like required fasting, fatigue (late shows), and drugs have been mentioned as methods of making sure spectators would be more convinced by what they saw. The shows started under the guise of actual séances in Germany in the late 18th century and gained popularity through most of Europe (including Britain) throughout the 19th century. The word "phantasmagoria" has also been commonly used to indicate changing successions or combinations of fantastic, bizarre, or imagined imagery.