Quote:
Originally Posted by tshiggins
Supposedly, there's some (limited) evidence that such an event took place during Charlemagne's era, that was at least twice as bad as the one that made telegraphs go crazy, in the 19th Century.
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Well,
something happened that leaves a trace in the isotope ratios, mostly Carbon-14, plus some others. Thanks for mentioning this, I'd not heard of it.