The clothes that nobles thought were "beautiful" gradually flowed into the people, and people usually dyed their teeth black before accepting the bar mitzvah ceremony. This custom lasted for 1870, and gradually disappeared after the Meiji Emperor strictly prohibited it.
In Japan at that time, shaving eyebrows with black teeth was regarded as a special beauty. Sharla Cheung, a beautiful woman in Tale of Genji, will be "more beautiful" only if her eyebrows are dyed. At that time, aristocratic women could not get married without dyeing the dark pool. In Japanese Ukiyo-e painting, there is a wonderful handsome man named Ping Dunsheng. He is not only handsome, but also good at fighting. In front of him, he must first paint his face white and then dye it black, so as to make himself more handsome, which was also passed down as a much-told story at that time. But why didn't I see that this is more beautiful and handsome? )
Later, this makeup technique was learned by the geisha school in Kyoto, and they followed suit. The whiter the face, the brighter the eyebrows, the darker the teeth, the more temples and the shorter the legs ... it has become a unique beauty in the hearts of Japanese people.
When Europeans and Americans landed in Japan on a "black boat", they were impressed by the beauty of Japanese women at first sight, but after seeing their teeth, they felt that they had fallen from heaven to the grave.
Many historians have studied this strange makeup of Japanese people and come to the conclusion that the origin of Japanese eyebrow shaving comes from the Tang Dynasty. It was brought back to Japan by the Japanese envoy in the Tang Dynasty. At that time, "eyebrow trimming" was popular among women in the Tang Dynasty. We can see the unique eyebrows of women in the Tang Dynasty in the pictures of ladies in the Tang Dynasty preserved today. After the Japanese introduced it, it was changed to "thrush" (all eyebrows were shaved off, and various eyebrow shapes were drawn in the original place with ink, much like our modern eyebrow tattoo). In the edo period in Japan, women could not get married when they reached a certain age, and their families would complain, "When can I shave my eyebrows?" Because when a woman gets married, her eyebrows must be shaved off and then painted with black pool and white powder, which is the authentic bride dress.
At present, there are two theories about black teeth in Japanese history. First, the teeth of ancient Japanese were arranged irregularly, which was very ugly. Are dyed black and turn a blind eye. The second argument is related to the Tang Dynasty in China. In the Tang Dynasty, there was a valiant soldier named "Chang Zhi with black teeth" (Baekje, now South Korea). He is brave and handsome. Before going to war, he would dye his teeth black, so the "black pool" may have spread from the Korean peninsula to Japan.
In fact, it's not just a day to blacken your teeth.