Maybe you learned a little about ninjas in my review of historian John Man’s new book, Ninja: 1,000 Years of the Shadow Warrior. To fill in any blanks, the author has kindly answered eight of your most burning questions, which I’m posting here.
You even managed to stump him on one.
Q: What was the ninja’s weapon of choice for assassinations?
John Man: A knife! Everything else was too cumbersome.
Q: How did they keep their villages secret so that families of those they’d assassinated wouldn’t strike them in their homes?
Man: There really weren’t all that many successful assassinations though there were several famous failures, which ended in the ninja’s death. Assassins were usually not villagers but were agents sent out by warlords living in well-defended castles.
Q: What was the average life span of a ninja?
Man: No idea! But it was a young man’s game. Since the real village-dwelling ninjas spent most of their time as farmers, I would guess they gave up being ninjas by the time they were 40.
Q: Did they really use kites for aerial assaults and infiltration?
Man: Never heard of that in real life.
Q: Where do I sign up for ninja training? (Editor’s note: Rephrased as, “Do forms of ninja training still exist?”)
Man: There are countless ninjutsu clubs and interest groups, but don’t confuse these with the real ninjas. Most of what passes for ninjutsu was devised after World War II.
Q: What is the relationship between ninjas and samurai?
Man: Some samurai were also ninjas because spying is a vital military activity; most ninjas were also samurai. So in military affairs, the relationship was close. But socially samurai ideals were so un-ninja that samurai had nothing to do with them.
Q: During what period were ninjas most active?
Man: During the late Middle Ages, about 1300 to about 1600. The last action in which ninjas were involved was in an anti-shogun rebellion on the Shimabara Peninsula in 1638.
Q: Did they really camouflage themselves with outfits similar to those in movies?
Man: Well, there was a ninja uniform — loose jacket and trousers — which was adapted from farmer’s clothing. But it was dark blue, not black. On occasion, they also wore a very lightweight chain-mail armor. I saw some suits of this armor owned by a restaurant owner who came from a ninja family.
Special thanks to HarperCollins for making this Q&A possible.