 In Tonggu County, Jiangxi province, people call their language "Huai-yuan-fa" ().It is commonly believed that Hakka people have their origins in several episodes of migration from northern China into southern China during periods of war and civil unrest dating back as far as the end of Western Jin.The forebears of the Hakka came from present-day Central Plains provinces of Henan and Shaanxi, and brought with them features of Chinese varieties spoken in those areas during that time.