A figurine (a diminutive form of the word figure) or statuette is a small, three-dimensional sculpture that represents a human, deity or animal, or, in practice, a pair or small group of them. Figurines have been made in many media, with clay, metal, wood, glass, and today plastic or resin the most significant. Ceramic figurines not made of porcelain are called terracottas in historical contexts. Figures with movable parts, allowing limbs to be posed, are more likely to be called dolls, mannequins, or action figures; or robots or automata, if they can move on their own. Figurines and miniatures are sometimes used in board games, such as chess, and tabletop role playing games. The main difference between a figurine and a statue is size. There is no agreed limit, but typically objects are called "figurines" up to a height of perhaps , though most types are less than high. Prehistory In China, there are extant Neolithic figurines. European prehistoric figurines of women, some appearing pregnant, are called Venus figurines, because of their presumed connection to fertility. The two oldest known examples are made of stone, were found in Africa and Asia, and are several hundred thousand years old. Many made of fired clay have been found in Europe that date to 25–30,000 BC, and are the oldest ceramics known. Olmec figurines in semi-precious stones and pottery had a wide influence all over Mesoamerica about 1000–500 BC, and were apparently usually kept in houses. These early figurines are among the first signs of human culture. One cannot know in some cases how they were used. They probably had religious or ceremonial significance and may have been used in many types of rituals. Many are found in burials. Some may have been worn as jewelry or intended to amuse children. History Porcelain and other ceramics are common materials for figurines. Ancient Greek terracotta figurines, made in moulds, were a large industry by the Hellenistic period, and ones in bronze also very common. In Roman art bronze came to predominate. Most of these were religious, and deposited in large numbers in temples as votives, or kept in the home and sometimes buried with their owner. But types such as Tanagra figurines included many purely decorative subjects, such as fashionable ladies. There are many early examples from China, mainly religious figures in Dehua porcelain, which drove the experimentation in Europe to replicate the process.