1815
Tambora erupts
USGS identifies the eruption as a major example of volcanic effects on global climate.
When one eruption rewrote a season / DOCUMENTED
The Year Without a Summer
In 1815, Tambora erupted. In 1816, abnormal cold and weather disruptions reached far beyond Indonesia—into harvests, migration, fisheries, and social change.
Strange HistoryScienceDisasters
The 1815 eruption of Mount Tambora affected global climate. USGS identifies the following year’s cooling and abnormal weather as the reason 1816 became known in places as ‘the year without a summer.’
The effects were not one clean, universal story. Crop stress, food insecurity, and regional changes were real, but outcomes differed by place and social conditions.
Levels / what is available
Levels 2–5 require an account and Deep Dive access.
Evidence cabinet
The record, in dates
1816
Abnormal weather and cooling
The year earns its nickname in parts of Europe and North America.
1816
New England’s ‘mackerel year’
USGS documents fisheries and social/ecological effects during the extreme climate event.
Okay. That part is legitimately strange.
Every item here is deliberately constrained to documented or supported material. Weird is not a substitute for evidence.
USGS describes 1816 New England as a ‘mackerel year,’ where extreme weather, crop strain, and fisheries changes interacted.
Level 4 / competing theories
Connections / selected free trail
Source desk
Customer-visible links are direct institutional records or collections. No fabricated citations; no source-free claims.
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