not be adequate rainfall that year. In northern Thailand, the Singhanavati Kingdom had a strong connection with nagas. The kingdom was believed to be built with aids of nagas, and thus, nagas were highly reverend by the royal family. The kingdom, for a period of time, was renamed Yonok Nāga Rāj (lit. Yonok the nagaraja) The nagas are also highly revered. The Buddhist temples and palaces are often adorned with various nagas. The term Nāga is also present in various Thai architecture terms including the nak sadung (นาคสะดุ้ง, the outer roof finial component featuring Nāga-like structure), and the nak than (นาคทันต์, the corbel with Nāga-shape). Moreover, nagas are sometimes linked to medicine. Owing to nagaraja Shesha's presence in Hindu legend's Samudra manthan of which Dhanvantari (god of Indic medicine) and Amrit (healing potion) were created alongside the universe, the nagas are thus linked to medicine in some extents. The nagas can also be founded substituting the snakes in either Rod of Asclepius or mistakenly Caduceus of several medical institutions' symbols. The former seal of Faculty of Medicine, Srinakharinwirot University, and the seal of Society of Medical Student Thailand are some notable examples using the Caduceus with nagas' presence instead of snakes. Folklore Thai folklore holds the Phaya nagas to be semi-divine, demi-creatures, which possess supernatural powers as has been described in Buddhist and Hindu cosmology. The "Kamchanod Forest" (ป่าคำชะโนด; ) Ban Dung district, Udon Thani province, which is held in high reverence and fear across Thailand, is believed to be the border between the human world and the netherworld, and is frequently depicted in Thai folklore as the site of many hauntings, but more frequently is considered to be the home of the Nāga. According to Shan folklore of Nánzhào Kingdom (now southern China and Southeast Asia during the 8th and 9th centuries, which was centered on present-day Yúnnán in China), the Nāga inhabited the Ěrhǎi lake and is the creator of the Mekong. In China, the Nāga (Chinese: 那伽) is generally more considered to be a dragon. Appearance Many people, particularly in Isan (the north-eastern region of Thailand), believe that the nagas are responsible for unnatural wave phenomena occurring in the rivers or lakes in the vicinity. It is also frequently claimed that the serpent-like demigods are responsible for marks on common objects, such as car hoods or house walls. A police office has also claimed to be in