Farmers in traditional clothes of Yi ethnic group perform traditional dance during the ceremony marking the 50th anniversary of the foundation of Chuxiong Yi Autonomous Prefecture of southwest China's Yunnan Province on April 15, 2008. (Xinhua/Chen Haining)

Farmers perform traditional dance during the ceremony marking the 50th anniversary of the foundation of Chuxiong Yi Autonomous Prefecture of southwest China's Yunnan Province on April 15, 2008. (Xinhua/Chen Haining)

(Xinhua News Agency April 16,2008)