History
The Japanese floors that betrayed would-be assassins
HERE’S THE INTERESTING PART
Installing an alarm system is tough when electricity doesn't exist, so ancient carpenters got highly creative with floorboards. Elite residences featured 'Nightingale floors' specifically constructed with metal clamps that rubbed against nails when pressure was applied. Anyone attempting to sneak down a hallway would unintentionally trigger a loud, bird-like chirping sound, instantly ruining their stealth mission.
One discovery leads to another.
Keep exploring facts in this topic.
History →
