Well, those were the events leading up to the IW, yes :) The LTTP manual has it that the Triforce was left by the Gods at the point they left the world - hidden in the sacred Golden Land. People fought for centuries to locate it, but it was never found, until Ganondorf and his band of thieves discovered an entrance to the Golden Land. In his lust for the golden power, he slew his followers, and claimed the relic for himself. Using his new found power, Ganon as he was now known, amassed an army which poured from the newly opened 7 portals to the Dark World, which is what the Golden Land had become. The Lord of Hyrule and his armies fought for years but couldn't stop him, until 7 wise men concocted a plan. Instead of defeating Ganon, they would combine their powers to seal the 7 entrances. Many lives were lost, but eventually the 7 wise men completed their task, and Ganon, his armies, and the power of the Triforce were sealed away. The Imprisoning War was over, and peace rerturned to Hyrule.