请将下面这段话翻译成英文：

　　重阳节(the Double Ninth Festival)，在每年的农历九月初九，是中国的传统节日。早在战国时期(the Warring States Period)人们就开始过重阳节，到了唐代，重阳成为全国性的民间节日。攀登高山是重阳节一项重要的习俗，据说这样可以避免灾难，并且带来好运。“九九”和“久久”在汉语中同音，因此，人们把重阳节与祝福老人长寿联系在一起。1989年，中国把重阳节定为“老人节”(Senior's Day)，使之成为一个全国性的尊老、爱老、助老的节日。在节日这天会组织各种活动，以帮助老人们交流感情、强身健体。

　　参考翻译:

　　The Double Ninth Festival, a traditional Chinese festival, falls on the ninth day of the ninth lunar month. The festival began to be celebrated as early as in the Warring States Period and became a national folk festival during the Tang Dynasty. It is customary to climb a high mountain, which is said to ward off disasters and bring good luck. Because "double ninth" is identical in sound to "forever" in Chinese, people relate the Double Ninth Festival to the good wish of longevity to the old. In 1989, the Double Ninth Festival was officially decided as the Senior's Day, a day of loving, respecting and helping the aged nationwide. On that day, varieties of activities will be organized so as to help old people exchange feelings with each other and improve their physical health.