This has a lot to do with cultural production and combat habits at that time. Tangdao is very expensive. Even in the Tang Dynasty, when Tang Dao flourished, not everyone owned Tang Dao. Moreover, the enemies faced by the Song Dynasty were mainly nomadic people in the border areas. It was inconvenient to fight them with tangdao, so tangdao was naturally replaced by other knives. Moreover, the manufacturing process in tangdao is very complicated, so it was difficult to mass-produce tangdao at that time. I believe that friends who are interested in weapons should have a certain understanding of tangdao in the Tang Dynasty. Tangdao's exquisite and sharp workmanship was welcomed by most people in the Tang Dynasty, but in the Song Dynasty, this exquisite tangdao gradually disappeared. Let me talk about why tangdao disappeared in the Song Dynasty.

First, tangdao is expensive. Even in the Tang Dynasty, not everyone could own tangdao. Tangdao rose in the Tang Dynasty, because tangdao was expensive, so the tangdao produced at that time was mainly used for honor guards. In the Song Dynasty, the imperial court paid less attention to these ceremonies and red tape, and was unwilling to spend so much money to build Tang Island, which naturally faded out of people's sight.

Second, Song Jun mainly faces the nomadic people in the north. Tangdao was inferior to other weapons in the battle, so it gradually disappeared. Another reason is that the army of the Song Dynasty mainly fought against the nomadic people in the north, so it was not so convenient to use tangdao to fight with other weapons. In order to fight better, the army naturally chose to give up tangdao and then produce weapons more suitable for fighting, so tangdao gradually disappeared.

Three, tangdao's manufacturing process is complex, and the production level at that time could not be mass-produced in tangdao. In the Song Dynasty, the production conditions were limited, and the manufacturing technology of Tang Dao was relatively complicated, so it was impossible for large-scale production of Tang Dao at that time, and naturally it could not be popularized and gradually disappeared.

What else do you know about Tangdao? Welcome to the comments section to communicate with me.