Under
汉文帝 and
汉景帝 three schools of the Songs were officially taught:
鲁诗 and
齐诗, named after the states of Lu and Qi, and
韩诗, named after Han Ying himself. All three were later lost, and the
毛诗 version became the standard text; his 《
韩诗外传》 is the main survivor of his school.