Ambrose Bierce was an influential journalist, satirist, writer of poetry and horror whose works were said to have inspired authors as diverse as H.P Lovecraft and Earnest Hemmingway. And his fame makes it all the more mysterious that, in 1913, he disappeared without a trace.
On November 13, 1833 the night became as bright as daylight, the heavens fell, and people feared that it was the end of times. The event was so dramatic that it sparked both a new religion and a new science.