Brain Junk

Uguisubari aka nightingale floors were a Japanese innovation. This super squeaky floor was an early version of an alarm. The specially constructed floors were in only a select number of castles, but they would alert guards and residents to a shinobi attempting to be sneaky. Show Notes:Check out this Wiki entry on nightingale floors Trace talked about. This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit brainjunkpodcast.substack.com