A Chinese workman pulls along a bundle of paper lanterns during preparations in London's Chinatown for the mid-Autumn (also Lantern or Moon) Festival where paper lanterns are to hang. The Mid-Autumn Festival, also known as the Moon Festival or Zhongqiu Festival is a popular harvest festival celebrated by Chinese, Korean, and Vietnamese people, dating back over 3,000 years to moon worship in China's Shang Dynasty. In Malaysia, Singapore, and the Philippines, it is also sometimes referred to as the Lantern Festival or Mooncake Festival. The Mid-Autumn Festival is held on the 15th day of the eighth month in the Chinese calendar, which is in September or early October in the Gregorian calendar. It is a date that parallels the autumnal equinox of the solar calendar, when the moon is at its fullest and roundest.