File photo taken on Feb. 17, 2007 shows a Mongolian herdsman breaking off a cow bone to serve guests at Kanas Village, northwest China's Xinjiang Uygur Autonomous Region. As a country with 56 ethnic groups, China unfolds its charm of diversification during the Spring Festival. Spring Festival, or better known as Chinese Lunar New Year, is the most important festival for all Chinese, which has a history of more than 4,000 years. It is an occasion for home returning, New Year goods preparing, celebrating, and foremost, family reunion. (Xinhua/Shen Qiao)