At this time, however, since the phalanx of Epaminondas bore down upon them alone and neglected the rest of their force, and since Pelopidas engaged them with incredible speed and boldness, their courage and skill were so confounded that there was a flight and slaughter of the Spartans such as had never before been seen. Therefore, although Epaminondas was boeotarch, Pelopidas, who was not boeotarch, and commanded only a small portion of the whole force, won as much glory for the success of that victory as he did. Both were boeotarchs, however, when they invaded Peloponnesus and won over most of its peoples, detaching from the Lacedaemonian confederacy Elis, Argos, all Arcadia, and most of Laconia itself. In 370 B.C. Still, the winter solstice was at hand, and only a few days of the latter part of the last month of the year remained, and as soon as the first month of the new year began other officials must succeed them, or those who would not surrender their office must die.