Whatever its material basis, the culture represented most spectacularly at Mycenae had by 1400 BC spread all over mainland Greece and to many of the islands. It was a coherent whole, although well-established differences of Greek dialect persisted and distinguished one people from another down to classical times. Mycenae replaced the Cretan trading supremacy in the Mediterranean with its own. It had trading posts in the Levant and was treated as a power by Hittite kings. Sometimes Mycenaean pottery exports replaced Minoan, and there are even examples of Minoan settlements being followed by Mycenaean.
The Mycenaean empire, if the term is permissible, was at its height in the fifteenth and fourteenth centuries BC. For a while, the weakness of Egypt and the crumbling of the Hittite power favoured it; for a time a small people enriched by trade had disproportionate importance while great powers waned. Mycenaean colonies were established on the shores of Asia Minor; trade with other Asian towns, notably Troy at the entrance to the Black Sea, prospered. But there are some signs of flagging from about 1300 BC. War seems to have been one answer; Achaeans took important parts in attacks on Egypt at the end of the century and it now seems that a great raid by them, which was immortalized as the Siege of Troy, took place about 1200 BC. The troubled background to these events was a series of dynastic upheavals in the Mycenaean cities themselves.
What can be called the Dark Ages of the Aegean were about to close in and they are as obscure as what was happening in the Middle East at about the same time. When Troy fell, new barbarian invasions of mainland Greece had already begun. At the very end of the thirteenth century BC some of the great Mycenaean centres were destroyed, perhaps by earthquakes or by invasions, and the first Greece broke up into disconnected settlements. As an entity Mycenaean civilization collapsed, but not all the Mycenaean sites were abandoned, at least not in full. Around 1000 BC some form of revival seems to emerge. Legendary accounts of this attribute much to one particular group among the newcomers, the Dorians. Vigorous and bold, they were to be remembered as the descendants of Heracles. Though it is very dangerous to argue back from the presence of later Greek dialects to identifiable and compact groups of early invaders, tradition makes them the speakers of a tongue, Doric, which lived on into the classical age as a dialect setting them apart. In this case, tradition has been thought by scholars to be justified. In Sparta and Argos, Dorian communities, which would be future city-states, established themselves.
But other peoples also helped to crystallize a new civilization in this obscure period. The most successful were those later identified as speakers of ‘Ionic’ Greek, the Ionians of the Dark Ages. Setting out from Attica (where Athens had either survived or assimilated the invaders who followed Mycenae), they took root in the Cyclades and Ionia, the present Turkish coast of the Aegean. Here, as migrants and pirates, they seized or founded towns, if not on islands, almost always on or near the coast, which were the future city-states of a seafaring people. Often the sites they chose had already been occupied by the Mycenaeans. Sometimes – at Smyrna, for example – they displaced earlier Greek settlers.
This is a confusing picture at best and for much of it there is only fragmentary evidence. Yet from this turmoil there would slowly re-emerge the unity of civilization enjoyed by the Bronze Age Aegean. At first, though, there were centuries of disruption and particularism, a new period of provincialism in a once cosmopolitan world. Trade flagged, and ties with Asia languished. What replaced them was the physical transference of people, sometimes taking centuries to establish new settled patterns, but in the end setting out the ground plan of a future Greek world.
Immediately, there was a colossal setback in civilized life which should remind us how fragile it could be in ancient times. Its most obvious sign was a depopulation between 1100 and 1000 BC so widespread and violent that some scholars have sought explanations in a sudden cataclysm – plague, perhaps, or a climatic change such as might have suddenly and terribly reduced the small cultivable area of the Balkan and Aegean hillsides. Whatever the cause, the effects are to be seen also in a waning of elegance and skill; the carving of hard gems, the painting of frescoes and the making of fine pottery all come to a stop. Such cultural continuity as the age permitted must have been largely mental, a matter of songs, myths and religious ideas.