Presented by: Ninja Flash Bombs. This is the Ninjatō, an infamous sword known to be used by Shinobi (ninja) of feudal Japan. You can find a replica of this word here #ad https://amzn.to/4nUyfqr #Ninja #shinobi #ninjutsu #ninjitsu #ninjas #fyp #usareels #usa #UnitedStates #japan #reelavirafyp #viralreels #facebookreels #reelsviral #reelviral #usareels #reelsviralシfb #reelsfacebook #viralchallenge #realtalk #martialarts #fypchallenge | Ninja Flash Bombs

Ninjas were known as stealthy spies and assassins who could carry out any number of missions, from theft to assassinations. In 16th-century Japan, tales of ninja prowess spread, leading to innovative defenses by the 17th century. Castle builders created anti-ninja floors to alert residents of intruders. They did this by placing metal brackets with nails beneath the joists, which would flex and produce a bird-like noise when stepped on. This clever design helped keep ninjas at bay and ensured the