They started missions, villages, ranches, towns. San Diego and most of the cities in California, Arizona, New Mexico and Texas were started and settled by the Spanish and Mexican people groups.
Conquistadors.
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The area in South America that is now called Colombia was inhabited by the Inca Native American Tribe. Later Spanish explorers made Spanish settlements there and conquered the Inca empire.
North, South, and Central America
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Spanish conquistadors.
South America
Latin America (Mexico and Central America, the Caribbean and most of South America).
Central and South America were conquered by Spain a country which speaks Spanish. However Brazil, was settled by Portugal and so Portuguese is spoken there.
Who was the leader of the Spanish army that conquered the Inca Empire? Francisco Pizarro in 1535 Who conquered the Aztec empire? Herman Cortes conquered the Aztecs in 1519.
parts of Africa, south America. the spanish explorers conquered the Aztecs and the incas
The Mongols never went to South America. It was the Spanish that conquered the Aztecs.