Note 202 — Chapter XLVIII · FROM THE BLOCKADE OF POTIDÆA DOWN TO THE END OF THE FIRST YEAR OF THE PELOPONNESIAN WAR.

Thucyd. ii, 2. ἅμα ἦρι ἀρχομένῳ—seems to indicate a period rather before than after the first of April: we may consider the bisection of the Thucydidean year into θέρος and χείμων as marked by the equinoxes. His summer and winter are each a half of the year (Thucyd. v, 20), though Poppo erroneously treats the Thucydidean winter as only four months (Poppo, Proleg. i, c. v, p. 72, and ad Thucyd. ii, 2: see F. W. Ullrich, Beiträge zur Erklärung des Thukydidês, p. 32, Hamburg, 1846).