Double Ninth Festival / Chung Yeung Festival（重阳节）；
Seniors' Day （老人节）；
Height Ascending Festival（登高节）；
Traditional Chinese Festivals - Double-Ninth Day（九九重阳节）；
Showing respect to the seniors(尊敬长辈)
Eating Chongyang cakes（吃重阳饼）
Drinking chrysanthemum wine（喝菊花酒）
Enjoying chrysanthemum and sticking chrysanthemum（赏菊和插菊花）
During the East Han Dynasty, there was a devil of the plague in the Ruhe River. As long as it showed up, people got sick and even died. People living around the Ruhe River suffered a lot from the disease ravaged by demons.
There lived a man named Huan Jing. His parents died from the plague and he almost died. After he recovered, Huan Jing decided to learn the magic arts and killed the devil of the plague. Huan Jing heard that there an immortal lived in the eastern area. He took a long journey and finally found the immortal. The immortal was moved by his behavior and taught Huan Jing how to kill the devil of the plague.
One day, the immortal told Huan Jing that the devil of the plague would show up again on the ninth day of the ninth month, and he asked Huan Jing to go back to kill it. When Huan Jing went back, he asked the whole family to go to a mountain and sent everyone a Zhuyu leaf and a glass of chrysanthemum wine. When the devil of the plague emerged from the water, it got dizzy from the scent of the Zhuyu and the chrysanthemum. At that time, Huan Jing took the sword and killed the devil of the plague. Since then, climbing mountains has become a custom on the Double Ninth Festival.