I see! thanks for explaining the mechanism. I should have read more. So the "darker than usual" aspect won't be from astronomical calculations, but from the hi

I see! thanks for explaining the mechanism. I should have read more. So the "darker than usual" aspect won't be from astronomical calculations, but from the historical records. Seems like it: "By putting together the information from ice cores and the descriptions from medieval texts we can now make better estimates of when and where some of the biggest eruptions of this period occurred."