linguistic:paraphrasing, stylistic:style_transfer
First mentions

The first written record of Mulan is the Ballad of Mulan, a folk song believed to have been composed during the Northern Wei dynasty (386–535 CE) and included in an anthology of books and songs during the Southern Chen dynasty (557–589 CE). While this anthology is itself lost, significant excerpts, including the Ballad of Mulan, survive in the Song dynasty anthology Yuefu Shiji (Chinese: 乐府诗集).

The historical setting of the Ballad of Mulan is usually the Northern Wei's military campaigns against the nomadic Rouran. A later adaptation has Mulan active around the founding of the Tang dynasty (c. 620 CE).

The story of Mulan was taken up in a number of later works, including the 17th-century work of historical fiction Romance of Sui and Tang, and many screen and stage adaptations.