Final answer:
San Cristóbal was once the name used for the territory now known as the Dominican Republic. It was established during the early colonial period following Christopher Columbus's voyages to the Americas.
Step-by-step explanation:
The country formerly known as San Cristóbal is currently known as the Dominican Republic. This name was used during the early colonial period when the Spanish established their first permanent settlement on the island of Hispaniola in the city of Santo Domingo.
Christopher Columbus first voyaged to the Americas, including Hispaniola, between 1492 and 1502, which led to the eventual Spanish colonization of many territories in the Caribbean and Latin America.
The Spanish influence shaped the history and development of these regions for centuries to come, with many gaining independence in the early 19th century.