There used to be an animation called Ninja Turtles, and now there is another animation called Naruto. They are all from Japan. What does "ninja" mean?

The origin of Ninjutsu

The theoretical basis of Ninjutsu is the Japanese art of war from China, which was developed by practicing Taoism and ambushing in the mountains. In peacetime, due to the rise of the samurai class, the art of ambush in the mountains was developed by the samurai. In the Yuan Ping era, he learned the Yuan Yijing of ambush in the mountains, successfully applied the technology of ambush in the mountains, and completed the theory of offensive tactics. During the Southern and Northern Dynasties, Kusunoki Masashige developed defensive techniques, and at the same time.

Ninjutsu school

During the Warring States period, Ninjutsu began to develop greatly, because Ninjutsu, martial arts and the art of war were urgently needed in this era. However, unlike the art of war and martial arts, Ninjutsu has its own uniqueness. Ninjutsu developed areas are as follows.

The genre of Ninjutsu uses the following place names as genre names:

Musashi, Jia Fei, Yue Hou, Nong Xin, etc.

Iga, Kaga, Kyrgyzstan, etc.

Ninjutsu in the last three states is the most developed in Japan.

Ninjutsu textbook "Wan Ji Chuan Sea"

Originally, before the Yamato crusade, Yihe and Jiahe were both called IGA.

Later, because in Muromachi and the Warring States period, the place names were separated during these two hundred years, so the schools were gradually separated.

However, although schools are separated, the classic of ninja training is the same book. This book is called Wan Ji Chuan Sea. This book has all the theoretical basis and skills to teach ninjas how to perform ninjas. (Beautiful Girls in the Warring States Period ~ Breaking the Sky "and" Ninja Luantaro "are the ninja textbooks mentioned in this book. )

Why are the ninja skills of Iga and Kaga so developed?

Both Iga and Kaga are close to Nagoya, and they are located in a small closed basin surrounded by mountains and dangers, forming a small world of their own. However, their strategic position is very important. Because they are close to the central part of Feng Jingen, they are deeply influenced by Kyoto culture. There are many temples, monasteries and manors. Later, the manor system collapsed and local tyrants rose one after another. During the Warring States period, there were 60 such small lands. However, because the land is very small, everyone wants to seize each other's land, so each family will probably raise 30 or 40 soldiers to deal with the "enemy country" (this is very similar to the land struggle between Minnan villages in the land reclamation era of Taiwan Province Province, and some are similar to the struggle between Fujian tourists). The fierce competition here is beyond the imagination of outsiders. Local tyrants allied themselves with each other, spying on each other and killing each other. Once the defeated local tyrants fall, it is difficult to get up again. No wonder this mountainous and fierce place will become the base camp for the development of Ninjutsu. After a long time, a balance will gradually develop among local tyrants, and then Ninjutsu will begin to be crowned throughout the country.

Theoretical origin of Ninjutsu

Ninjas are mostly farmers, not aristocratic warriors. Ninjutsu's ambush skills in the mountains come from the experience of mountain warfare living in Yamato, Yoshino, pommel horse, Genlai and Iga.

Kyoto is the birthplace of the magic (Yin-Yang Road) used in Ninjutsu, because there are Tantric Benshan, such as Bi and so on not far away.

Wu Yun's face endurance comes from six paths and a cavity.

Immigrants and ninjas in China and South Korea

Because the Daiwa court welcomes skilled people from other places to settle in Japan, there are a large number of people from China and North Korea. For example, many people moved to Japan from China and North Korea. These people usually settle in Kyoto, and then some people move to nearby Iga or Kaga to work.

In addition, there are many foreigners and naturalized people here (foreigners settle in Japan, become Japanese and change their surnames to Japan). For example, in the early days of the Tokugawa shogunate, due to the cooperation between Hattori Shimada Hanzo and Konka, many Iga and Kaga people moved to Edo with Hattori. Cimachi is a variant of Iga and Jiamachi. And the Shimada Hanzo Gate (the old house where Hattori Shimada Hanzo lived).

The influence of foreign craftsmen

In addition, the technology introduced by foreigners, such as gunpowder, has taken root here, so this is the place where Japan has made gunpowder for a long time. Other craftsmen have also taken root here, such as the master who makes handicrafts, the master who plays with dolls ... All kinds of artists have come ... So, there are many such people in Iga and Kaga, and ninjas can engage in spy work with the skills of many folk street performers in the future. But in the society at that time, such people's status was not noble (in their hometown of China and South Korea, these people's status was not high either, and the businessman was the last of the four. Of course, the Japanese are also divided into peasants and businessmen, but scholars refer to literati, that is, warriors).

Takeda Shingen, the military commander who loves to use ninjas.

Because Shinhyun hates the secrets of his country being known by others, he likes to train ninjas. He loves the ninjas who drive him to practice (he calls them "Luanbo") and "Sanshe" (this is also a name used by Takeda's family to call ninjas). The origin of "Luanbo" comes from vagrants, unemployed people or bandit gangs in Afghanistan, New Zealand and Vietnam to organize and teach them combat skills such as mountain warfare. "Three" are the general names of "Meeting", "Square" and "Mu Fu". These people are experts in scouts and spies. Xin Xuan sent Saemon from Futian Township to control these ninjas.

Tamaki Hideyoshi and Bee Beard He Xiaoliu

As we all know, when Yukio Hatoyama had no choice, he used to take refuge in Mi Xu and Xiao Liu and eat rice at his house. Mi Xu and Xiao Liu are active "night thieves" in MINO (bandits, better known as wild warriors, didn't find an army to hire their master, and what's worse, they are mountain kings who rob money at night). In any case, people who work in bandit groups are usually not poor, so they can warmly entertain some people who have no food. Go to his house for dinner. Later, these people became loyal subjects because they helped Toyotomi Hideyoshi enter Gu Mo City, and finally got rid of the stigma of robbers. However, the Ministry of Information hates the rotten army with poor military discipline, so the bee must congratulate Xiao Liuhe and his thieves for never doing anything other than stealing goods again. However, the good skills they developed during the robber period became good conditions for becoming ninjas, so those people suddenly became ninjas of Xiuji army and performed well in all major battles.

The secret of ninja

Ninja, like SUSI and geisha, has become an international language. Whether authentic Japanese or foreigners learning ninja skills, their images of ninjas are usually: dressed in black, able to fly over walls, leap over cities, call the shots, change stars and fight, and use all kinds of grotesque hidden weapons. Although this image is not accurate, it is also very close.

Ninja's job is mainly to carry out secret tactics, sabotage, assassination, collecting enemy frontline information, disturbing enemy reserve bases and other espionage activities for the Lord. Because you have to be anonymous before you die and live a dark life for life; You can't leave a few phrases in case you get caught in the future. So, when should the origin of Japanese ninja be traced back? No one dares to assert. However, in the secret book of Ninjutsu, it is recorded that Shoto Kutaishi (from the end of the 5th century to the beginning of the 6th century) had a ninja named Da Companion.

At present, although there are numerous schools of Ninjutsu in various parts of Japan, they will return to Iga (northwest of Mie Prefecture) and Kaga (south of Shiga Prefecture). I think many people get the impression from comics and novels that the Iga Ninja Corps and the Kaga Ninja Corps are sworn enemies. Actually, it's not. Their ancestors are the same family, and most of them are related by blood. However, if their employers (monarchs) are hostile to each other, they will have to disagree and even become brothers.

On the other hand, in order to facilitate the inheritance of Ninjutsu from generation to generation, they also had to intermarry frequently, which can be said to be a close relationship. If you think about it a little, you will know that once you grow up in this place, no matter whether you are a man or a woman, can you still marry and have children for family secrets? Moreover, there are usually female ninjas behind male ninjas. This kind of work is a matter of course unless I have been exposed to it since I was a child. Otherwise, one day my husband suddenly left without saying goodbye. Ordinary women who can stand not to be angry?

In the ninja world, there are four basic commandments: don't abuse Ninja (just for business), give up all self-esteem (it's important to run for your life), keep your mouth shut (even if you lose your life), and never reveal your identity (this is the most basic Ninja). There are three periods when ninjas are active: 1 1 Yuan Ping period from the end of the century to the end of 12 century, Southern and Northern Dynasties period from 13 century, and Warring States period from the middle of 14 century to the end of 15 century. The Warring States period can also be said to be an era when ninjas "let a hundred flowers blossom and a hundred schools of thought contend".

Ninjas are divided into "upper forbearance", "middle forbearance" and "lower forbearance". "forbearance", also known as "think tank forbearance", specializes in the overall plan of strategic operations. "Zhong Ren" is the commander in actual combat. Of course, patience must be outstanding. "Lower forbearance", also called "physical forbearance", is equivalent to modern special forces, ninjas who actually fight in the forefront. There is an obvious hierarchical relationship between them. Lower forbearance obeys middle forbearance, and middle forbearance obeys upper forbearance.

The following is a brief description of ninja equipment:

clothes

Ninjas usually sneak into enemy towers and mansions on new moons or cloudy nights. If they wear black, the outline will be more prominent. So the basic clothing color is dark blue. At night, when the moon and stars are scarce, they will change into gray or brown clothes. Sometimes it's gray outside and brown inside. In case of enemy pursuit, you can reverse your costume on the way and use the color illusion to escape. In addition, dark blue can prevent the invasion of poisonous snakes, mosquitoes and other insects, and it is a cloth dyed with iron-containing natural dyes. Jeans and ninja clothes invented by American pioneers have the same purpose.

As for underwear, of course, it is the traditional Japanese crotch cloth (a slender white cloth). But the ninja's beam method is different from that of ordinary people, and its length is longer. They wrapped the crotch cloth from the neck to the crotch and finally to the waist. In this way, the crotch cloth can be pulled out from the back of the neck at any time as a bandage or rope for first aid. There are many pockets in the coat to put some gunpowder, sewing needles and first-aid drugs (including sleeping pills and poison) that can't get wet; There are some daily necessities in the belt. Gloves and leggings usually hide some hidden weapons.

weapon

In order to deceive the border guards' interrogation, ninjas usually dress up as farmers when traveling. Therefore, the so-called Ninja hidden weapons is often transformed from farm tools, daily necessities and gardener props. Most of these weapons are invented and cast by themselves, and only they know their usage, so they are no different from ordinary daily necessities in the eyes of others. This is also one of the main reasons for the loss of ninja weapons.

Modern people know seven kinds of ninja weapons from various ninja cheats: syuriken, makibisi, Ninja, hukiya, sikomidue, tekkoukagi and mizugumo. Shuriken is a kind of darts, the tip of which is coated with poison. "Sprinkle Spirit" is a diamond weapon left behind when escaping. Anything that is uneven and can sting your feet, such as natural stones, dried fruits, iron, etc. , you can use instead. "Endure the knife", with a rope about three meters long, can be used as a stepping tool when crossing the city wall, and then recovered by the rope; When in danger, the scabbard can be used as a snorkel in potential water. "Blowing an arrow" is a poisonous needle, usually hidden in a flute; Sometimes you need to dress up as an artist during the journey, so ninjas must learn to blow arrows and practice flute skills. As the name implies, "Enduring Staff" is a kind of walking stick, which hides weapons such as chains, spears and swords. There are all kinds of "nail hooks", some on the nails and some on the back of the hand, depending on what kind of kung fu the participants are good at. "Water Spider", a prop used when crossing a river, can usually be folded and hidden in a bag.

Ninja food

Ninja can never "gain weight". Because he must hide on the ceiling, under the floor, or even hang on a tree or post in the house to support his weight with one hand, he must be careful not to exceed 60 kilograms. In terms of a man's arm strength, the upper limit weight of fighting with the enemy with one hand is 60 kg (try it yourself). "Ninja food" is mainly grain, with low calorie, low fat and high protein. The staple food is generally brown rice, wheat and sweet potato, the side dishes are miso made of tofu and soybeans, and others are plums, vegetables, sesame seeds and quail eggs. Foods that enhance body odor, such as leeks, meat, onions, garlic, ginger, and hobby cigarettes, are all prohibited. Moreover, ninjas often take a bath and wash clothes in order to get rid of body odor. In addition, pine nuts, torreya nuts and other plant fruits are also one of the staple foods of ninjas.

"Carrying grain" is also very important. Once you receive the task order, whether camping in the wild or lurking on the ceiling of the enemy mansion, you must have "carrying food" to maintain your physical strength. Dried taro can be strung into a necklace and hung around the neck; Steamed rice can be preserved after drying. Both can be brewed with boiling water and become fast food to satisfy hunger. In addition, ergot, plum and rock sugar are mixed into pills to become "thirst-quenching pills"; Carrot, buckwheat flour, wheat flour, sweet potato, licorice, coix seed and glutinous rice flour are all ground into powder and soaked in wine for three years. After the wine volatilizes, knead it into the size of a peach pit. You only need to eat three pills a day, so don't worry about consuming physical strength. There is another kind called "frost wyrm Pill", which is made of carrots, wheat flour, glutinous rice flour, honey and wine, boiled with slow fire, then kneaded into small balls and dried in the sun. You can take 30 tablets a day to get the necessary vitamins. "frost wyrm Pill" should be used by wartime soldiers when guarding the city, right? In short, this is also one of the main "ninja foods".

Field survival method

Ninja has rich knowledge of herbal medicine, and can distinguish poison from good medicine and improvise. I know the habits of wild animals like the back of my hand. Many ninja skills are learned from the habits of wild animals. Astronomical meteorology is one of the essential basic endurance skills. For example, observe whether there are water droplets on the spider web at night, and if there are, it will be sunny the next day; There is a halo around the moon, or when the moonlight is brighter than usual, the next day is rainy; It began to rain in the middle of the night, at eight o'clock in the morning, and at night, which may last for several days. When you get lost in the deep mountains, bake the needle of the sewing needle with fire, or put wax on the needle and put it into the water immediately. The pointer points to the north. The sewing needle on the ninja can not only be used to tell the direction, but also be used as an acupuncture prop when injured or tired. What if the kettle is out of water? Find an ant hole or a mole hole. Where there are ants and crickets, there must be water nearby.

Ninjutsu

First of all, of course, you have to improvise into various identities The basic "nanabake" of a ninja is: becoming a monk, being an empty monk, crouching on the mountain, abandoning the teacher, being upright, being a businessman, and being Saruga Kush. "Xiuke" is an ordinary bald monk. "komusou", wearing a cylindrical bamboo hat on his head to cover his whole face; Dressed in cassock; There is a bowl hanging around the neck; Xiao blew while begging. A monk practicing in Shan Ye. "houkasi" is equivalent to a modern street performer, performing magic, stunts and monkey tricks. "tunenokata" incarnates as a local farmer or soldier, provided that he can speak fluent local dialect. A "businessman" is a businessman who sells medicines and sugar. Jianghu artist "sarugakusi". Others include "disguise", "transformation" and "voice change".

When delivering confidential documents, the best way is to memorize them. However, sometimes it is sewn inside the clothes; Sometimes documents are twisted into a rope and woven with straw hats. What's more, a slender piece of paper is wrapped around a cylinder, which records the contents of the document. If you untie the paper, the content will become unclear words. After receiving the document, the recipient winds the note on a cylinder with the same thickness and restores its original shape. Personally, I think the coolest way is to carve words on the scalp! In this way, you must shave your hair first, then tattoo it, and then shave it when it grows and returns to the Lord safely. However, this method must be painful. But ninjas can mix medicines anyway, so there should be some modern anesthetics. Another way is to use the "Word of God". This is a kind of large-scale ancient Chinese characters before China Chinese characters spread to Japan, which is equivalent to Oracle Bone Inscriptions in China. During the Warring States period, few people could read the holy book, so it became a "secret code" between ninjas.

There are all kinds of other strange endurance techniques, such as "Wen", "Wu", "Yi" and "Le", and the list goes on. After Tokugawa Ieyasu established the shogunate in Edo (Tokyo), some Iga Ninja became the guards and spies of the shogunate, while the rest Iga Ninja and Kaga Ninja were assigned to famous territories all over the country. During the Meiji Restoration, Ninjutsu was gradually lost, and these descendants of Ninjutsu changed jobs and became policemen, doctors, drugstore owners, fireworks artists and so on. Having said that, the world of ninja is still very attractive, which makes modern Japanese, even foreigners, curious and want to explore: what medicine is sold in this gourd? !

& ltB& gt； Five methods of ninja

"Incense" of Ninja's Five Ways

You can't practice ninja without honing your senses. Therefore, ninjas attach great importance to the development of vision, hearing, smell, touch and taste, especially the sixth sense organ. In order for the sixth sense officer to emerge constantly, you need to be highly concentrated. Ninjas know that with the mysterious power of fragrance, they can calm their nerves. But the so-called "fragrant path" of ninja is different from the fragrant path of one of the three major techniques (tea ceremony, flower path and fragrant path). This is because ninjas judge that fragrance is a kind of information.

1, solve the mystery of fragrance

Observing people is a ninja's job. In addition to observing people's faces, language and other behaviors, fragrance is also one of their judgment materials. According to the smell attached to the clothes, we can infer the economic situation, the size of the house and so on. Ninja judges by distinguishing the subtle differences between fennel, clove, musk, cinnamon, aloe, agarwood and sandalwood.

2. Ninja's "seven endings"

"Seven Unique Skills" Props of Ninjutsu:

There is a makeup technique called "Seven Outings" in the strategy of ninja. Ninjas disguise themselves as nihilistic monks, monks, "Shanfu" (Japanese Taoist practitioners), businessmen, "Laishi" (miscellaneous technicians), "Saruga Kush" (folk artists) and ordinary people, and then enter the enemy. When sneaking into the enemy's interior, contrary to the above-mentioned judging people's identity by smell, they deliberately let their bodies have a certain smell in order to cheat each other's trust. Because monks who don't smell incense are suspicious, they don't have "motorcycle protection" (a practice of throwing cedar wood into the fire to support the gods). ) The fragrant "mountain" is also impossible. Medicine sellers will have the scent of herbs, and clothes sellers will have unique scents, such as aloe vera and musk. What you dress up as, you must make your body have a fragrance suitable for your status. Of course, because ninjas are proficient in incense, we might as well call it behind the scenes.

3. Do ninjas like to take a bath?

It is said that the Japanese are a people who love hot springs and bathing very much. Ninja often takes a bath, too. But this is not a ninja's hobby, but an important job. Why do you say that? Just as you can judge a person's identity by smelling it, sometimes it is necessary to eliminate it. Moreover, bathing with calamus water also means keeping an clean body and avoiding evil spirits.

Herbal bath

The aromatic components of herbs can eliminate the odor of human body and the odor brought by daily life, and also have the medical functions of promoting blood circulation, relieving fatigue and curing. Ninja is familiar with the knowledge of herbal medicine, so as to make full use of its fragrance.

Even the Lysimachia christinae bath is also called Ivy, a perennial herb belonging to the family Perillaceae. It has anti-inflammatory effect.

Mint and ginger soup bath can promote blood circulation and eliminate fatigue.

Wormwood bath is effective for knife wound, mosquito bite, shoulder pain and neuralgia.

4. Ninja is aromatherapy.

Ninja has profound knowledge of pharmacy, you must know it. And its basis is a keen sense of smell, which can distinguish the smells of various herbs. It can be seen that they are extremely sensitive to fragrance. In other words, ninjas use the fragrance of sandalwood, musk and cedar to achieve the purpose of unifying spirit and concentrating. Ninja's application of "incense" not only focuses on the actual pharmacological effects, but also fully practices the modern so-called aromatherapy.

There are ten virtues of incense:

Feel ghosts and gods, clear the body and mind, drive away toxic gas, eliminate drowsiness, live alone as friends, take time off from work, use more, use less, hide for a long time and use frequently.

Transferred from Phantom City

"Medicine" of Ninja's Five Ways

Iga's hometown is famous for its rich medicinal materials. This is because ninjas have advanced pharmacological knowledge. Ninja combines a high degree of knowledge and technology into Ninjutsu to make a magical "harmonious medicine" (referring to Japanese herbs). There are many kinds of drugs. Here are some representative drugs for you.

First, selling drugs to treat diseases.

In order to get a lot of information, ninjas usually dress up as businessmen selling spells or drugs. In particular, taking medicine as a means of communication and going deep into the common people is the usual means of ninja. People tend to take their own pain lightly, from the past to the present. So what medicine did the ninja use to sneak into the enemy?

1, Zijindan (selling medicine)

A ninja who is familiar with poison and drugs

Poison can also be a good medicine, as long as it is used properly. Ninja's knowledge about poison has played a great role in drug development. Because drugs can not only treat their own injuries, but also be used to disguise themselves as drug dealers and infiltrate the enemy.

2. Zijindan

Respectively drying Shā rotto Katakuri, Galla Chinensis, Euphorbia Euphorbia and Moschus (musk gland of Moschus), grinding into powder, and making into pills. Shā rotto Katakuri is the bulb (underground rhizome) of tulip, which has a good effect of nourishing yin and strengthening yang. Galla chinensis is the leaf of Rhus chinensis, which contains a lot of tannic acid and has a significant effect on vomiting and diarrhea. Euphorbia has diuretic effect; Musk used as a spice can eliminate phlegm. It can be seen that Zijindan is a commonly used medicine to treat abdominal pain and relieve fatigue. Therefore, it is very suitable as a backup medicine. Moreover, ninjas can dress up as drug dealers, investigate the surrounding situation and collect local information without being suspected.

3.Darani Help (a Japanese gastrointestinal pill)

This is to boil the bark of yellow tiller with antibacterial effect on Escherichia coli, dysentery bacteria, cholera bacteria and staphylococcus in water until it is dry. As a gastrointestinal medicine, as we all know, it is still circulating in Dafeng Mountain, and people often use it as a gift. Ninjas use it in a special way, because they have to lie in ambush for a long time and lick this medicine with their tongues to refresh their minds and eliminate drowsiness.

4. Toad oil

Look at the frog oil (street acrobatics). If you are injured, it is still used for toad tubing.

There are often such street acrobatic scenes in Time Drama (Japanese historical drama). When traveling around, ninjas often dress up as street technicians ("lying gun technicians"), the most famous of which is selling frog oil. Their selling method seems a little suspicious of the old woman selling melons, which affects the credibility of the medicine. But in fact, the reason why ninjas bother to get frog oil has its scientific basis.

It is found that the liquid secreted by toad contains adrenaline hydrochloride which can constrict blood vessels, so it can constrict the blood vessels of the wound and stop bleeding. So it's not entirely a lie.

5. Cao Cao, the king of folk medicine

This grass is used to treat various diseases, so it is also called a panacea. Its smell can prevent mildew and has antibacterial effect on Trichophyton albicans, so the juice squeezed from fresh leaves can be applied to wounds, redness and poisonous insect bites, or directly applied. Boiling it into a medicinal soup can induce diuresis and treat constipation, which is the so-called medicine for detoxifying and reducing fire. Ninjas are all over the country, and they are often outdoors. This medicine is extremely precious to them.

6. Ginkgo biloba

Although ginkgo trees are ubiquitous and seemingly ordinary, they actually contain amazing vitality. If you put your ear close to the tree, you can hear the sound of upward water absorption, which shows its strong vitality and strong water retention ability. This water retention makes it have the function of fire fighting, so this tree is planted in shrines and Buddhist temples and can be used as a fire forest. In addition, its new leaves can prevent insects from being caught in books, so it is used to save files. Ninja boiled and drank Ginkgo biloba leaves, because it has strong functions. Fruit (Ginkgo biloba) can be fried or boiled, which is considered to have expectorant, disinfectant and hangover relieving effects. It is reported that Ginkgo biloba leaves are also used as medicine in Germany.

Second, all kinds of skills are scientific.

1, fire

Ninja has a high level of pharmacology and is compatible with scientific and chemical knowledge. Surprisingly, the ninja invented the kindling that can burn continuously for 12 hours. A kind of "ninja prop" called "trunk fire" (that is, a heater hidden in the body) can be hidden in your arms all the time after the fire is lit inside. It can be used as a cooker to keep out the cold in cold Shan Ye and other harsh environments. A copper cylinder about 15 cm long is filled with "paper" (similar to rice paper), Polygonum hydropiper and eggplant stalks baked into black ash. The cylinder also has a through hole and a ventilated cover, so there is no danger even if it is placed in your arms.

2. Compass needle

This has nothing to do with medicine. Ninja once made a compass by hand. It is called "Zhu Zhe" (that is, a magnet). The method is to burn the iron sheet red, then quickly put it in cold water for cold treatment to make the iron sheet magnetic, and then pull the magnetic iron sheet into thin slices to make it into a boat shape. When in use, let it float on the water and don't sink. At this time, the direction pointed by the ship is north.

3. The magical use of purple cloth belt

Among the belongings of ninjas, there is one thing that people have to admire. This is the purple "three-foot towel" (that is, the cloth towel). Can be used to wipe the face, Baotou, climb the wall as a rope and so on. It can be used for many purposes. However, these methods are not much different from ordinary cloth towels. What best embodies the characteristics of ninja is the dye used. Ninja dyed the cloth belt with sappan wood, a leguminous plant, to make it bactericidal. Soaking a towel in water can kill bacteria, and it can also be used as a bandage to wrap the wound when it is slightly injured. Ninja must know that sappan wood has bactericidal effect before using it as a prop.

4, sterilization, pest control and herbal dyes

1) picrorhiza

Huhuanglian Huhuanglian is also called "Dangyao" because it tastes effective and has the meaning of proper medication. It can cure abdominal pain and other symptoms, and is famous for its extremely bitter taste. However, it is still little known that frying picrorhiza picrorhiza with water to dye underwear can drive away fleas and lice. There is no need to worry about these bugs now, but for ninjas at that time, the insect-proof effect of picrorhiza picrorhiza was a very important discovery.

2) Yellow tillers

Trees growing in mountainous areas. Boil the epidermis of yellow tiller in water and use it as a dye. Paper dyed with this dye can resist insects, so it can be considered that it is of great significance for ninjas to save important documents.

Third, the secret recipe of ninja cough pills

1, Zhike pill

Ninjas have been shouldering too arduous tasks for a long time, and they can't finish the spy's work without overcoming thirst and fasting one after another. But ninjas are actually people. When this happens,