The description of the founding of the wizengamot. War is probably not a very descriptive term for what was going on before it—The political structure implies that it is what came after a period of feuding families. In this case, feuding families with magical might backing up the kind of stupidity bloodfeuds cause.
How do we know the crisis was war, and not (for example) people gradually reinventing the arts with which the Atlanteans destroyed themselves?
The description of the founding of the wizengamot. War is probably not a very descriptive term for what was going on before it—The political structure implies that it is what came after a period of feuding families. In this case, feuding families with magical might backing up the kind of stupidity bloodfeuds cause.