Songpan county is perched on the north-eastern edge of Aba and has become a magnet for ethnic Han tourists from across China.

ECONOMIST: China��s restive Tibetan regions

Han Sanping, the chairman of China Film Group Corp.

WSJ: Katzenberg Unveils China Film Project

By the time of the Han dynasty - still more than 2, 000 years ago - China's borders already closely resembled those of eastern and central China today.

BBC: A Point Of View: Making sense of China

"Productivity Growth of the Non-Tradable Sectors in China", by Dong He, Wenlang Zhang, Gaofeng Han and Tommy Wu.

ECONOMIST: Sources and acknowledgments

"The race for luring the Chinese tourists is getting more and more competitive, " said Han Hwa-joon, head of the Korean Tourism Organization's China team.

WSJ: Seoul Bets on Chinese Tourists for Lunar New Year

China consists of some 50 minorities and also majority races: the Han, Manchus, Mongols, Uighur, Zhuang and Tibetans.

CNN: ASIANOW - Asiaweek | Letters & Comment

China, meanwhile, is warier of external influences, and remains about 90% Han Chinese.

FORBES: China May Not Be A U.S. Ally, But It's Also Not An Adversary