(Διακρία; Diakría), also Hyperacria and Epacria. Term for the mountainous northeast of Attica , probably also the Attic east coast as far as Brauron, the ancestral home of the Peisistratids (Pl. Hipparch. 228b; Plut. Solon 10,3; [4. 224]). Supported by a group of Hyperakrioi (Hdt. 1,59) or Diakrioi (Aristot. Ath. Pol. 13,4; [1; 2; 3. 184-188]), Peisistratus  established his tyrannis in Athens in 561 BC.
1 K. H. Kinzl, Regionalism in Classical Athens?, in: Ancient History Bull. 3, 1989, 5-9
2 R. J. Hopper, 'Plain', 'S…