 Luce, the millennium-old Pyu realm came crashing down under repeated attacks by the Nanzhao Kingdom of Yunnan between the 750s and 830s CE.Like that of the Pyu, the original home of Burmans prior to Yunnan is believed to be in present-day Qinghai and Gansu provinces.After the Nanzhao attacks had greatly weakened the Pyu city-states, large numbers of Burman warriors and their families "first" entered the Pyu realm in the 830s and 840s, and settled at the confluence of the Irrawaddy and Chindwin rivers, perhaps to help the Nanzhao pacify the surrounding countryside.