Scientists Reveal Source of Medieval Europe's "Year Without Summer"

[Popular Archaeology]  The researchers determined that the eruption ejected about 10 cubic miles of rock and ash, exceeding even the cataclysmic Tambora eruption of 1815, an event, also in Indonesia, that destroyed and buried an entire local civilization on the island of Sumbawa. That was thought to be the largest known eruption during the past 10,000 years. Their findings also revealed that the Samalas event had occurred sometime between May and October of 1257 AD, likely leaving much of Lombok, neighboring Bali and part of Sumbawa uninhabitable for many years after.