Which volcano has killed the most people?

The volcano eruption in Tambora, Indonesia, in 1815, killed around 92,000 people.

The eruption sent fiery ash into the stratosphere, which cooled the world climate for more than a year.

In some parts of the world, that year is called 'the year without a summer' because it was so cool. Tambora also destroyed crops, and led to disease and water contamination.