This episode is fourth in our Alternate History Week series, where I look at famous books of alternate history and discuss why I think their alternate timelines aren't plausible. Lest Darkness Fall, written in 1939 by L. Sprague de Camp, is one of the classics of the alternate history genre. American archeologist Martin Padway gets sent back to Rome in 535 AD. He introduces new technology to the Italo-Ostrogothic kingdom, such as the telegraph, printing press, and brandy; wards off a Byzantine attack; introduces a constitution; and emancipates the serfs. Great story. It would never work. In this episode I explain why.   TO HELP OUT THE SHOW Leave an honest review on iTunes. Your ratings and reviews really help and I read each one. Subscribe on iTunes or Stitcher