https://www.nature.com/articles/s41598-020-77253-1
not sure where to put this and may be of passing interest to some. I find it fascinating and relevant to discussions about historical events around the time mentioned in the article and the possible interrelationships
'not sure where to put (it)'. Is that because you can't see the wood for the trees...
::)
;D
It is consistent with other measures of human activity, like the chemical output of metal production measured in ice cores.
And roughly comparable in date to the Dunkirk Marine Transgression (which is not a set of court martial offences for the Booties...)