Minoan civilization especially the sequence of ceramic styles, have been used by archaeologists to define the three phases of Minoan culture (EM, MM, LM). Since wood and textiles have decomposed, the best-preserved (and most instructive) surviving examples of Minoan art are its pottery, palace architecture (with frescos which include landscapes), stone carvings and intricately-carved seal stones. Frescoes were the primary art form of Minoan culture. They include many depictions of people, with sexes distinguished by color; the men's skin is reddish-brown, and the women's white. Several frescoes at Knossos and Santorini survive. In contrast to Egyptian frescoes, Crete had true frescoes. Probably
Minoan civilization Ancient Egypt). Evans' system divides the Minoan period into three major eras: early (EM), middle (MM) and late (LM). These eras are subdivided—for example, Early Minoan I, II and III (EMI, EMII, EMIII). Another dating system, proposed by Greek archaeologist Nicolas Platon, is based on the development of architectural complexes known as "palaces" at Knossos, Phaistos, Malia and Kato Zakros. Platon divides the Minoan period into pre-, proto-, neo- and post-palatial sub-periods. The relationship between the systems in the table includes approximate calendar dates from Warren and Hankey (1989). The Thera eruption occurred during a mature phase of the LM