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Natural disaster
10 April 1815 · Tambora, Sumbawa
The catastrophic eruption of Tambora devastates surrounding communities and releases large quantities of aerosols into the atmosphere. The resulting cooling contributes to crop failures and the Year Without a Summer in 1816.
The total includes both immediate deaths and later mortality from famine and disease; regional records are incomplete.
Historians disagree on exact figures; the range shown reflects the scholarly literature.