The earliest trace of Thai ceramics ever recorded is the Ban Chiang, said to date back to about 3600 B.C.E. and found in what is the present day Udon Thani Province, Thailand. The ceramics were earthenware made of clay. Common forms of excavated artifacts were cylinders and round vases. The early pots were undecorated while the later ones were carved with geometric patterns and swirling designs. Each of the pieces was also found to have axial perforations which showed that people at that time had knowledge of using tools.
The second important prehistoric Thai ceramics is the Ban Kao which was in Kanchanburi Province. Unlike Ban Chiang, Ban Kao’s wares were thinner and had a glossy surface finish. What is interesting is that there are a wide range of forms and shapes, some of which are similar to bronze wares of Han China.
After the prehistoric period the kingdom that emerged at about 1st century C.E. was the Mons. They made considerable ceramics uses in relation to religious symbols in the form of figurines. Ceramics were also used as a building decorations.
Following the Mons were the Khmers who appeared in about the 9th century C.E. Little is known about Khmer ceramics because archaeological research has focused on their great achievements in stone and bronze sculpture. The ceramics of Khmer era are quite interesting. Many of the designs include parts from animal and have a dark brown glaze finish.
The best known of all traditional Thai ceramics are those from Sukhothai and Sawankhalok. Sukhothai wares were generally treated with a creamy white slip and decorated in black with an opaque or greenish glaze. The most famous Sukhothai kiln is the Si Satchanalai. Examples of the wares can be found in many leading museums of the world. Sawanakhalok products tend to be more finely made than the Sukhothai ones. These products are incised and often include animal shapes. Some of the original examples can be found in many private collections and museums today. Ceramics based on these styles are still made at present and widely exported, particularly to the Philippines and Indonesia.