I, Emperor Wen of Han, Explode the Technology Tree at the Beginning

He traveled through time and became the third emperor of the Western Han Dynasty, Emperor Wen of Han Dynasty Liu Heng! It was the Emperor Liu Heng of Han Dynasty who was frugal and worked hard all his life, and started the Wenjing Dynasty, but was short-lived and sickly. He watched the later Han Emperor Wu show his talents, but he did not enjoy a few years of happiness! Lin Yue, no, his name should be Liu Heng at this moment, suddenly woke up and his heart was beating wildly. As a history buff who is familiar with history and thinks about time travel and changing his life all day long, he knows the life of Emperor Wen of Han very well. He seemed to be an eternal wise king, but in fact he was controlled by a group of heroes all his life. He was plagued by trivial matters in the harem and was weak and sick. In the early Han Dynasty, people's livelihood was in decline and the infrastructure was dilapidated. Outside, the Huns were eyeing him, and inside, there were vassal kings who were ready to take action. Even though he worked hard to govern the country, he could only barely recuperate, and he did not even live past the age of fifty. Not to mention, in this era, medical care was backward, plague was rampant, the people were hungry and cold, pens, inks, paper and inkstones were luxury goods, knowledge was monopolized by the nobles, and even the basic roads were in dilapidated condition. External affairs could only rely on peace and harmony.