> this is the history of the Cathedral >

Exactly. There aren't many old structures that don't have a history littered with damage or complete destruction and rebuilding. Natural disasters, invaders, accidents. I like to think that those events are becoming less frequent with increasingly better tech and a more civilized world. This one was an anomaly I think. It will be interesting to learn the cause(s) and see what practices might be put in place to avoid them in the future.