Why is the columbian exchange named after christpher Columbus?

The Columbian Exchange is named after Christopher Columbus because he played a pivotal role in initiating the widespread exchange of plants, animals, cultures, humans, and diseases between the Americas and the rest of the world following his voyages in 1492. His expeditions marked the beginning of sustained contact between Europe and the Americas, leading to significant ecological and cultural transformations. The term "exchange" reflects the reciprocal nature of these interactions, impacting societies on both sides of the Atlantic.