Christopher Columbus was an Italian explorer and navigator who completed four voyages across the Atlantic Ocean, opening the way for widespread European exploration and the eventual conquest of the Americas by Europeans. His exploration and discoveries had a profound impact on the historical development of the modern Western world.
Columbus was born in the Republic of Genoa, in what is now Italy, in 1451. He began his maritime career as a teenager, participating in several trading voyages in the Mediterranean and Aegean seas. He also gained experience in navigation and mapmaking during this time.
In 1492, Columbus set out on his first voyage across the Atlantic, seeking a western sea route to the lucrative markets of Asia. Instead, he landed in the Bahamas, believing he had reached the East Indies. This marked the beginning of the European exploration and colonization of the Americas.
Columbus' voyages had a lasting impact on world history, leading to the Columbian Exchange, the transfer of plants, animals, culture, human populations, technology, and ideas between the Americas and the Old World. This exchange had both positive and negative effects on the world, shaping the development of global trade and the spread of diseases, crops, and ideas.