It is called the Columbian Exchange because of Christopher Columbus' widespread transfer of culture, plants, animals, human populations, technology, diseases, and ideas between the Americas, West Africa, and the Old World. This happened between the 15th and 16th centuries
The Columbian exchange, also known as the Columbian interchange, named after Christopher Columbus, was the widespread transfer of plants, animals, culture, human populations, technology, diseases, and ideas between the Americas, West Africa, and the Old World in the 15th and 16th centuries. Hope this helps!
The pre-Socratic thinkers made the transition from myth to reason because unlike the earlier pre- Socratics they tried to find natural and rational explanations for the phenomena that they would see around them instead of the mythological reasoning.