Imperial academy and Hongdu School. Imperial academy, the central official school in Han Dynasty, is the highest institution of learning in Han Dynasty, and also a specialized school for studying Confucian classics in Han Dynasty. Its educational content is closely related to Confucianism, and Hongdumen School, founded in the first year of the Eastern Han Dynasty, is a college for studying and studying literature and art in the Han Dynasty, breaking the convention of specializing in Confucian classics, both of which belong to the central official school of the Han Dynasty.