In the 18th century, the Dutch introduced coffee plantation on the western slopes of Mount Tambora, a volcano on the north side of Sumbawa, thus creating the Tambora coffee variant. Tambora's colossal eruption in 1815 was one of the most powerful of all time, ejecting of ash and debris into the atmosphere. The eruption killed up to 71,000 people and triggered a period of global cooling known as the "Year Without a Summer" in 1816. It also apparently destroyed a small culture of Papuan affinity, known to archaeologists as the "Tambora culture".