• -231 DR [Year of the Ringed Moon]
  • Three entire clans of elves flee Seros to save their lives and those of their children migrate to Lake Sember within the elven nation of Cormanthyr. »

  • 0 DR [Year of the Rising Flame]
  • The treants of Semberholme complete their migration to the south of Lake Sember. »

  • 1374 DR [Year of Lightning Storms]
  • Mirtul 28 By the shore of Lake Sember, Seiveril revives the Dales Compact with Battledale, Deepingdale, Mistledale, and Shadowdale. »