Interesting. Not much earlier, in 1783, the Laki volcano in Iceland erupted[1] and its impact on Europe (failed crops, famines, etc) is often mentioned as a pos

Interesting. Not much earlier, in 1783, the Laki volcano in Iceland erupted[1] and its impact on Europe (failed crops, famines, etc) is often mentioned as a possible trigger for the French Revolution. [1] http://en.wikipedia.org/wiki/Laki#1783_eruption http://en.wikipedia.org/wiki/Laki#1783_eruption