(兜, 冑) is a type of helmet first used by ancient Japanese warriors which, in later periods, became an important part of the traditional Japanese armour worn by the samurai class and their retainers in feudal Japan. Note that in the Japanese language, the word is an appellative, not a type description, and can refer to any combat helmet. Every year on Children's Day, May 5, Japanese households display miniature kabuto and samurai armor in keeping with the tradition of Tango no Sekku. In feudal times, real samurai armor, kabuto, and tachi were displayed. History Japanese helmets dating from the fifth century have been found in excavated tombs. Called (visor-attached helmet), the style of these kabuto came from China and Korea and they had a pronounced central ridge. , which is now known as a samurai helmet, first appeared in the 10th century Heian period with the appearance of ō-yoroi. Until the early Muromachi period, were made by combining dozens of thin iron plates. Generally, only daimyo and samurai at the rank of commander wore ornaments called , which were shaped like a pair of hoes. In the middle of the Muromachi period, as the number of large-scale group battles increased, ordinary samurai wore in the shape of hoe, sun, moon or flag on their to show their courage or to distinguish friend from foe. In the Sengoku period in the 16th century, when the war became extremely large-scale and the guns called became popular, the armor styles called and became outdated and the armor style called was born. are made by combining three to four pieces of iron plates, and they are more bulletproof than the conventional style, enabling mass production, and the became more eccentric and huge. Some of these were made of iron, but for safety reasons on the battlefield, they were sometimes made by putting paper on a wooden mold, coating it with lacquer and curing it, and extracting the mold. In the Azuchi–Momoyama period, had a simple yet more unique and bold design in accordance with the popularity of Momoyama culture. In the Edo period, when the Tokugawa shogunate defeated the Toyotomi clan at Summer Siege of Osaka and the society became peaceful, armor with a revival of the medieval times became popular, and and style were made again. The kabuto was an important part of the equipment of the samurai, and played a symbolic