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Year Without a Summer happened on 1815-04-10.
The Year Without a Summer (also known as the Poverty Year, Eighteen Hundred and Froze to Death, and the Year There Was No Summer) was 1816. [See Link]
the volcano that caused a YEAR without summer was mount tambora
Yes!, there was once a year without a summer in 1816, according to the Glencoe Earth Science Geology, the Environment, and the Universe Text book.
a volcanic eruption