The 9th day of the 9th lunar month is the traditional Double Ninth Festival, which falls on October 13 in 2013. In an ancient and mysterious book Yi Jing, or The Book of Changes, "6" was thought to be of yin character, meaning feminine or negative, while number "9" was thought to be yang, meaning masculine or positive. So the "9" in both month and day create Double Ninth Festival, or Chong Yang Festival. The Chinese ancestors considered it an auspicious day worth celebration. 

The celebration of Double Ninth Festival is colorful and romantic, generally speaking, including activities of outing and enjoying the scenes, climbing mountains, watching chrysanthemum, wearing dogwood, eating Double Ninth pastry and drinking chrysanthemum wine. >>more

Filial piety is a concept that has been passed down from generation to generation in China for thousands of years. The Double Ninth Festival, which dates back more than 2,000 years, is a day for showing respect to the elderly in China. In 1989, the Chinese government decided the Double Ninth Festival as Senior's Day, combining the tradition and the modern, which made it become the festival of honoring, loving and helping the seniors. A book filled with 24 stories of children showing filial piety to their parents was published during the Yuan Dynasty (1271-1368) and was popular for several centuries. >>more