The natives did a bunk
Malcolm Gaskill: The Little Ice Age, 19 July 2018
“... so serious that they couldn’t be contained politically. In a 2013 study, the historian Geoffrey Parker argued that the ‘general crisis’ of the 17th century, a litany of wars, invasions, rebellions, massacres, epidemics and famines, can be explained by the Little Ice Age. Others have seen the origins of the French Revolution in climate change, when a ... ”