In my honors english and history classes we are currently working on research papers on a controversial issue. The issue needs to be between 1800-1913 though, and I was considering researching the early looping coasters, like the Flip-Flap and Loop-the-Loop. I need to find 4 primary sources, or documents from that time period, however. So, if anyone has or knows of newspaper articles and such about these rides that are from that time, please let me know! Thanks!