of influence from India, China, Cambodia, and the rest of Southeast Asia. Thailand's national religion, Theravada Buddhism, is central to modern Thai identity. Thai Buddhism has evolved over time to include many regional beliefs originating from Hinduism, animism, as well as ancestor worship. The official calendar in Thailand is based on the Eastern version of the Buddhist Era (BE). Thai identity today is a social construct of the Phibun regime in the 1940s. Several ethnic groups mediated change between their traditional local culture, national Thai, and global cultural influences. Overseas Chinese also form a significant part of Thai society, particularly in and around Bangkok. Their successful integration into Thai society has allowed them to hold positions of economic and political power. Thai Chinese businesses prosper as part of the larger bamboo network. Respect for elderly and superiors (by age, position, monks, or certain professions) is Thai mores. As with other Asian cultures, respect towards ancestors is an essential part of Thai spiritual practice. Thais have a strong sense of social hierarchy, reflecting in many classes of honorifics. Elders have by tradition ruled in family decisions or ceremonies. Wai is a traditional Thai greeting, and is generally offered first by a person who is younger or lower in social status and position. Older siblings have duties to younger ones. Thais have a strong sense of hospitality and generosity. Taboos in Thai culture include touching someone's head or pointing with the feet, as the head is considered the most sacred and the foot the lowest part of the body. Art The origins of Thai art were very much influenced by Buddhist art and by scenes from the Indian epics. Traditional Thai sculpture almost exclusively depicts images of the Buddha, being very similar with the other styles from Southeast Asia. Traditional Thai paintings usually consist of book illustrations, and painted ornamentation of buildings such as palaces and temples. Thai art was influenced by indigenous civilisations of the Mon and other civilisations. By the Sukothai and Ayutthaya period, Thai had developed into its own unique style and was later further influenced by the other Asian styles, mostly by Sri Lankan and Chinese. Thai sculpture and painting, and the royal courts provided patronage, erecting temples and other religious shrines as acts of merit or to commemorate important events. Traditional Thai paintings showed subjects in two dimensions without perspective. The size of each element in the