An Lushan Rebellion
Middle Gan (中世贛語, "Zung-si Gon-ngi") is the variety of Gan spoken between the Tang and Song dynasties (from the 6th to the 13th century). The last time of large-scale settlement in Jiangxi by people from the Central Plain took place as a result of the An Lushan Rebellion. Gan also became stabilized following this period.