Note that the Orientation Slice is cut precisely to the (100) before the crystal is rotated and cut at either +.25 degrees and toward the flat, or â.25 degrees and away from the flat (as described in Figure 3).
The era was called the Dark Ages also because we don't have a lot of written sources from that time period, especially from the early part of the dark ages (500 to 800 CE).
The year 1100 B.C. or so marked the end of higher civilization in the Aegean for a long time. The succeeding period (1100-750 B.C.) is conventionally called the Dark Ages of Greece, and it is aptly named. Because writing disappeared along with Mycenaean civilization, no written evidence exists for this period.y the end of the Dark Ages, most Greeks came to have a genos (- e) or clan as well. A clan is a group of families that trace their relations to one, often mythical or semi-mythical, ancestor. Clans may not have existed in the early Dark Ages, but the Greeks did have tribes.