Three important rules, especially when explicitly stating or indirectly insinuating climate change: 1. Context; 2. Context; 3. Context. “Recorded History” in this case is 1970. Granted there weren’t 5.5 million people in this province in the Roman and Medieval Warm Periods, but I doubt it’s “record setting” for this interglacial period, especially with those two comparatively recent warm periods.