Because the primary school system was not popularized in the Han Dynasty, children's enlightenment education was mostly carried out at home. For example, when Wang Chong was 6 years old, his father began to teach him calligraphy. When Zhang Ba was seven years old, he had finished reading The Analects. In some families with conditions, they also undertake the Confucian classics education for their children. In the Eastern Han Dynasty, Chaju established the Scout Army Department to select "Broadcom Classics" teenagers. For example, Xie Lian and Zhao Jian, aged 65,438+02, were chosen as Tong Zilang, which greatly encouraged the development of early childhood education.