Final answer:
Spain, under King Ferdinand and Queen Isabella, sponsored Christopher Columbus's voyage westward in search of a route to Asia, which led to the eventual colonization of the Americas.
Step-by-step explanation:
The country that sponsored Christopher Columbus’s voyage west in search of a route to Asia and the Indies was Spain. After unsuccessfully trying to gain support from Portugal, and being turned down by other European monarchs, Columbus was able to convince the Spanish monarchs, King Ferdinand and Queen Isabella, to fund his expedition. The promise of spreading Christianity and gaining an economic advantage over Portugal were key motivators for the Spanish rulers. Therefore, in 1492, Columbus set sail with the Niña, the Pinta, and the Santa Maria, departing from Spain and landing in the present-day Bahamas, Cuba, and Hispaniola. Columbus’s voyages did not lead him to Asia as he had intended, but they did lead to the eventual Spanish colonization of the Americas.