Yan Che opened his eyes, and in front of him was the overwhelming locust plague in the second year of Zhenguan. Behind him was the Chang'an granary with only three days of grain left, and the system store's first order request was to let Li Shimin roast a locust with his own hands.
When he took out the cement formula and the drawings of the Quyuan plow, the civil and military officials in the court thought he was just a crazy craftsman. It was not until three months later that the cement city walls were erected, the rice yields doubled in the Champa City were eared in Guanzhong, and the Turkic cavalry suffered severe head injuries in front of the bastion and artillery.
From people's livelihood infrastructure to the industrial revolution, from the Western Region trade routes to overseas expansion, the heavy carriage of the Tang Dynasty is being replaced by a steam engine in the hands of Yan Che, and it is racing in the direction where the sun never sets.