The Largest Volcano Erupts in History: Impact and Global Response Mount Tambora, located on the island of Sumbawa, Indonesia, is one of the largest volcanoes that erupted in history in 1815. This eruption is estimated to have a volcanic explosiveness index (VEI) of 7, making it one of the most powerful. The impact of this eruption was felt not only in Indonesia, but also in various parts of the world. In the eruption, around 1600 cubic meters of volcanic material was ejected into the atmosphere, causing significant climate changes. Scattered smoke and ash blotted out sunlight, resulting in the “year without a summer” in 1816. Global temperatures plummeted, causing major losses in agricultural production, famine, and population migration in Europe and North America. The socio-economic impact of the Tambora eruption was very large. Farmers lost their crops, resulting in sharp increases in food prices. In Europe, the continent experienced a wave of emigration due to famine. Scientists, such as Lord Byron, described conditions of global depression resulting from these climate impacts, which also changed the literary and artistic patterns of the time. The global response to the eruption of Mount Tambora has varied. Countries are trying to address the food crisis, with some governments creating agricultural rehabilitation programs. On the other hand, understanding of volcanic activity is increasing. Researchers began studying the relationship between eruptions and climate change, creating early insights into volcanology. Education about natural disasters is starting to become a focus in many countries. Resources are allocated to research and development of volcano monitoring technology. Even though the Tambora eruption occurred more than two centuries ago, the study of its impact remains relevant in understanding volcanic phenomena today. The Tambora eruption also provided valuable lessons about resilience and disaster relief. Communication between countries becomes more important when major disasters occur, triggering the formation of international networks to respond to natural disasters. Aid programs and information exchange are shared globally, strengthening international solidarity amidst the crisis. From a scientific perspective, the Tambora eruption paves the way for deeper research into the long-term impacts of volcanic disasters. Analysis of volcanic ash layers in ice cores and rock columns provides valuable data on the frequency and intensity of eruptions. This knowledge is crucial for people living near active volcanoes around the world. Mount Tambora is also an example of the combination of history, science and social change. The impact of this eruption continues to influence how countries respond to the threat of natural disasters in the future. With the increasing frequency of volcanic eruptions in recent decades, such as Mount Merapi and Krakatoa, it is important for us to learn from history to ensure the safety of the global community. The experience of the Tambora eruption reminds us of the importance of being alert to natural disasters. With a deep understanding of the factors that cause eruptions, we can better prepare for the future, and minimize the impact that would occur if a similar disaster occurs again. A sustainable approach to studying volcanoes, as well as international cooperation, is key to protecting future generations from the threats posed by volcanic activity.