List three people or groups who developed trade in the west?

Three key contributors to the development of trade in the West include the Phoenicians, who were renowned for their maritime trade and established trade routes across the Mediterranean; the Roman Empire, which built extensive networks of roads and established a unified currency that facilitated trade; and the European explorers of the Age of Discovery, such as Christopher Columbus and Vasco da Gama, who expanded trade by connecting Europe with Asia and the Americas. These groups played pivotal roles in shaping economic exchanges and cultural interactions in the Western world.