Archaeological evidence affects the attitude towards literary tradition. Continuity of literary tradition was maintained between the Mycenaean period and the archaic Greek period by the recitation of epic lays. The movements of the Dorian group are all anterior to the so-called Dorian invasion. They afford some insight into the way of life of these primitive people. This chapter presents the traditions of Dorians and Heracleidae before the Trojan War, as well as the traditions of Dorians and Heracleidae between the Trojan War and their entry into the Peloponnese. The Dorians chose to attack Melos and Thera first before other conquests, presumably because these islands were on the way to their friends in east Crete, Rhodes and the Dodecanese and also because they held important positions on the trade routes to the Levant. The chapter also talks about the invasions of Thessalians, Boeotians, and Eleans, and ends with a note on the effects of the invasions on the Mycenaean Greeks.