As the final victory of Athens over Aegina was in 458 BC, the thirty years of the oracle would carry us back to the year 488 BC as the date of the dedication of the precinct and the beginning of hostilities.
The final triumph of Athens over Aegina in 458 BC is linked to the thirty years of the oracle's prediction, which would lead back to 488 BC as the date for the dedication of the precinct and the start of hostilities.