What nationality was Christopher Columbus?

Christopher Columbus (1451 – 20 May 1506) was an Italian explorer, navigator, colonizer, and citizen of the Republic of Genoa. Under the auspices of the Catholic Monarchs of Spain, he completed four voyages across the Atlantic Ocean. Those voyages and his efforts to establish permanent settlements on the island of Hispaniola initiated the European colonization of the New World.

He was born before 31 October 1451 in the territory of the Republic of Genoa (now part of modern Italy). His father was Domenico Colombo, a middle-class wool weaver who worked both in Genoa and Savona and who also owned a cheese stand at which young Christopher worked as a helper. His mother was Susanna Fontanarossa.

Columbus was not the first European explorer to reach the Americas, having been preceded by the Viking expedition led by Leif Erikson in the 11th century, but his voyages led to the first lasting European contact with the Americas, inaugurating a period of European exploration, conquest, and colonization that lasted several centuries. These voyages had, therefore, an enormous impact in the historical development of the modern Western world.