Most severe famine in pre-twentieth century lasted for three years immediatly following the eruption of Mount Tambora (10h 17min, apr 10, 1815 y – 23h 6min, may 29, 1817 y)
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Date:
10h 17min, apr 10, 1815 y
23h 6min, may 29, 1817 y
~ 2 years