A worshipping ritual for the Yellow Emperor or Huangdi is held in Xinzheng, Henan province on March 24, 2012. The ritual is held annually on the third day of March according to the lunar calendar in Xinzheng, Huangdi's birthplace. Xinzheng is a county-level satellite city of Zhengzhou, capital of central China's Henan province. [Photo/chinadaily.com.cn]