Minoan civilization is seen in Minoan handicrafts on the Greek mainland. The shaft graves of Mycenae had several Cretan imports (such as a bull's-head rhyton), which suggests a prominent role for Minoan symbolism. Connections between Egypt and Crete are prominent; Minoan ceramics are found in Egyptian cities, and the Minoans imported items (particularly papyrus) and architectural and artistic ideas from Egypt. Egyptian hieroglyphs might even have been models for Minoan pictographic writing, from which the Linear A and Linear B writing systems developed. Archaeologist Hermann Bengtson has also found a Minoan influence in Canaanite artifacts. Minoan palace sites were occupied by the
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