Great Cause - in the World

How many emperors could build canals, restore the Great Wall, establish imperial examinations, centralize power, eliminate powerful people, eliminate future troubles, intimidate the barbarians, conquer the Western Regions, and connect the world? How many emperors could go to great lengths to conquer Qinghai, Mongolia, and Liaodong in an era when there were only wooden-wheeled carts for the sake of the country's stability, security, and development? The song "Wuxiang Liaodong's Death Song" scolded Emperor Yangdong. Emperor Yang of the Sui Dynasty once said: "Don't worry about future generations!" "People only remember that Emperor Yang of the Sui Dynasty traveled south of the Yangtze River by dragon boat three times, but a few people remember how much the four-thousand-mile Grand Canal contributed to China's prosperity and stability!