There are several beliefs about the origin of the Lantern Festival. However, its roots trace back more than 2,000 years ago and is popularly linked to the reign of Emperor Ming of the Han dynasty at the time when Buddhism was growing in China. Emperor Ming, an advocate of Buddhism, noticed Buddhist monks would light lanterns in temples on the fifteenth day of the first lunar month. As a result, he ordered all households, temples and the imperial palace to light lanterns on that evening. From there it developed into a folk custom. Another likely origin is the celebration of "the declining darkness of winter" and community's ability to "move about at night with human-made light," namely, lanterns. During the Han dynasty, the festival was connected to Ti Yin, the deity of the North Star.