Blizzard Entertainment released Warcraft III: Reign of Chaos, the original base game that the expansion The Frozen Throne builds upon.
Blizzard Entertainment released Warcraft III: The Frozen Throne, the expansion pack to Warcraft III: Reign of Chaos.
The Battle.net online gaming service was launched for Warcraft III: The Frozen Throne, allowing players to connect and compete online.
Community members began creating custom maps and mods for The Frozen Throne using its World Editor tool, leading to popular game modes like Defense of the Ancients (DotA).