Although Prince of Yan Zhu Di was a prince, he was stationed in the north to guard Yan. He showed amazing perseverance and courage since he was a child, and was the most outstanding one among his brothers, but he was not the eldest son and missed the throne. After the unexpected death of Prince Zhu Biao, Zhu Yuanzhang appointed his grandson Zhu Yunwen as the crown prince. Zhu Di was forced to retreat by the reduction of his power, and he had no choice but to raise an army, which was also the only way for him to realize his ambitions. Under heavy pressure and suffering, he played a song of victory in the competition of heroes, although he was cursed for it for all eternity. But he knew in his heart that he would rather lose to the Zhu family than to the people of the world. During his reign, Zhu Di worked hard to govern the country, put the people first, maintained the unity and integrity of China's territory, and sent Zheng He to the West many times to demonstrate the spirit of a great power, establish a monument of peace and friendship, and make the Ming Empire famous far and wide. At the same time, he ordered people to compile the "Yongle Encyclopedia", dredge the Grand Canal, and move the capital to Beijing, thus developing the devastated country after the Jingnan Campaign into the Yongle Era of economic prosperity and strong national strength.