Three Years of Blindness: Has the Qin Dynasty Unified the World?

Li Zhang, a modern academician, unexpectedly came to Daqin as a teaching assistant! Not knowing the fact that he had traveled through time, he only thought that Ying Zheng was the village chief of Zhaojia Village. "Old Zhao, if you want to get rich, you must first build roads; if you want to support education, you must first get rid of poverty!" "Also, our world is round. The earth is divided into five major plates and seven continents..." So Li Zhang drew a map of the world and gave it to Ying Zheng. So Ying Zheng relied on this map to conquer the entire world. Five years later, Li Zhang's eyes recovered and he looked at the new Qin Dynasty. Suddenly realized... He might have traveled through time!