Major Chinese dialect groups during the Han period.
This file was derived from: Eastern China blank relief map.svg
Dialect areas from

Coblin, W. South (1983), A Handbook of Eastern Han Sound Glosses, Hong Kong: Chinese University Press, ISBN 962-201-258-2, pp. 19–22.
Serruys, Paul L-M. (1959), The Chinese Dialects of Han Time According to Fang Yen, University of California Press, OCLC 469563424, pp. 98–99.
Kanguole