April 10th - 15th, 1815 Mount Tambora also known as Mount Tamboro erupted killing more people than any other volcanic eruption in history. The eruption killed between 80,000-100,000 people causing a major devastation to everyone in the world. Not only did the eruption shack the world by killing over 80,000 individuals but it also caused a climate change in the world. Prior to this catastrophic eruption there were no signs of volcanic activity there for thousands of years. Therefore when Mt.Tambora erupted everyone was shocked and went into a panic. Not only did it send people into shock it caused everyone to go into depression because of its horrible effects and the amount of people it killed both indirectly and directly.
The top image shows Mt.Tambora before the explosion in 1815.The image below shows the mountain in the process of erupting. The last image shows the mountain after Mt.Tambora was completely done erupting.