In 986, personally led her own army against the Song dynasty and defeated them in battle,[30][31][32][33][34] fighting the retreating Chinese army. She then ordered the castration of around 100 ethnic Han Chinese boys she had captured in China, supplementing the Khitan's supply of eunuchs to serve at her court, among them was the eunuch Wang Ji'en. The boys were all under ten years old and were selected for their good looks.[35][36][37][38] The History of Liao described and praised Empress Chengtian's capture and mass castration of Chinese boys in a biography on the Chinese eunuch Wang Ji'en.[39][40][41][42][43][44][45][46][47][48][49] Late 10th century: Gudit rebels against the Kingdom of Aksum in Ethiopia.[50]