The year 2005 events:

• World of Warcraft is released in Europe (11 February), China (6 June), Singapore, Hong Kong and Macau.
• Patches beginning with 1.2.3 up to 1.8.4 arrived in 2005:
  • 1.3, March
  • 1.4, April
  • 1.5, June
    • Battlegrounds were introduced: Alterac Valley and Warsong Gulch
  • 1.6, July
  • 1.7, September
    • Zul'Gurub was introduced
    • Battleground introduction Arathi Basin
    • Hunter talents revamp
    • Stranglethorn Fishing Extravaganza introduced
  • 1.8, October through December
    • Silithus revamped for solo players and 5-man parties
    • Four Dragons
    • Feast of Winter Veil preparations