Why was Zhonghemen renamed in the Ming Dynasty?

Dazhongmen was originally named "Zhonghemen", which means that problems can be easily solved with Confucius' thoughts. When the temple was expanded in the Ming Dynasty, it was renamed Dazhongmen to praise Confucius' knowledge as a great achievement of human knowledge. "China" takes the meaning of the golden mean, "the golden mean is the way of the world, and the golden mean is the principle of the world", which is impartial and not easy.

The Dazhong Gate is longer and narrower than the Red Gate, with five rooms. There is a blue tile turret on the left and right of the Dazhong Gate, which was built to make the Confucius Temple as grand as a palace. There are three turrets, which are curved in plane and stand on a square platform, and there is a path inside the platform to go up and down.

The northeast and northwest watchtowers of Wamiao form a huge rectangle for guarding.