1955 and 1963 were also exceptionally harsh winters, but not being close to a major event they continue to remain unimportant.
ie, the 1946/47 winter is just observership bias, spanish flu's closeness to WW1, is on the other hand, part of the factor in how it spread (likely from the US to the trenches, then to everywhere else as convalescing wounded returned home from hospitals filled with the infected)
ie, the 1946/47 winter is just observership bias, spanish flu's closeness to WW1, is on the other hand, part of the factor in how it spread (likely from the US to the trenches, then to everywhere else as convalescing wounded returned home from hospitals filled with the infected)