Oral histories handed down from generations to generations say that Kham people migrated from Norther icy himalayan regions which lies to the southern part of China after the Kham civilization got lost and submerged in the icy glaciers in and around 200 AD. Later on the Kham kings ruled from present Karnali region or ancient Nepal region in the far west. However, after Khas kings from Kumaon and Garwal continued to attack upon Kham kings of Humla and Jumla area in around 400 AD.