Five years ago this weekend, Notre Dame was in flames. Although an electrical fault was to blame (allegedly) the cause has not been determined.
This is an interesting read...
https://www.spiegel.de/international/europe/the-resurrection-of-fire-ravaged-cathedral-brings-france-together-in-unexpected-ways-a-d066ac19-948b-4954-8602-9ec0650510de?nlid=spiegel-international-21-00&sara_ecid=nl_upd_1jtzCCtmxpVo9GAZr2b4X8GquyeAc9
For France and the French Notre Dame is more than only a church and I must admit, I, too, was shocked when I saw Notre Dame in flames on TV.