also played an important role in establishing a sense of order. Symbolism, ranging from the Pharaoh's regalia (symbolizing his power to maintain order) to the individual symbols of Egyptian gods and goddesses, was omnipresent in Egyptian art. Animals were usually also highly symbolic figures in Egyptian art. Colour, as well, had extended meaning—blue and green represented the Nile and life; yellow stood for the sun god; and red represented power and vitality. The colours in Egyptian artifacts have survived extremely well over the centuries because of Egypt's dry climate. Despite the stilted form caused by a lack of perspective, ancient Egyptian art is often highly realistic. Ancient Egyptian artists often show a sophisticated knowledge of anatomy and close attention to detail, especially in their renderings of animals. During the 18th Dynasty of Egypt a Pharaoh by the name of Akhenaton took the throne and abolished the traditional polytheism. He formed a monotheistic religion based on the worship of Aten, a sun god. Artistic change followed political upheaval. A new style of art was introduced that was more naturalistic than the stylized frieze favored in Egyptian art for the previous 1700 years. After Akhenaton's death, however, Egyptian artists reverted to their old styles. Faience that was produced in ancient Egyptian antiquity as early as 3500 BC was in fact superior to the tin-glazed earthenware of the European 15th century. Ancient Egyptian faience was not made of clay but instead actually of a ceramic composed primarily of quartz. Minoan The greatest civilization of the Bronze Age was that of the Minoans, a mercantilist people who built a trading empire from their homeland of Crete and from other Aegean islands. Minoan civilization was known for its beautiful ceramics, but also for its frescos, landscapes, and stone carvings. In the early Minoan period, ceramics were characterized by spirals, triangles, curved lines, crosses, and fishbone motifs. In the middle Minoan period, naturalistic designs such as fish, squid, birds, and lilies were common. In the late Minoan period, flowers and animals were still the most characteristic, but variability had increased. The 'palace style' of the region around Knossos is characterized by strong geometric simplification of naturalistic shapes and by monochromatic painting. The Palace at Knossos was decorated with frescoes that showed aspects of daily life, including court rituals and entertainment such as bull-leaping and boxing. The Minoans were skilled goldsmiths who created beautiful pendants and masks.