Nicaragua
Spanish era (1523–1821)

In 1502, on his fourth voyage, Christopher Columbus became the first European known to have reached what is now Nicaragua as he sailed southeast toward the Isthmus of Panama. Columbus explored the Mosquito Coast on the Atlantic side of Nicaragua but did not encounter any indigenous people. 20 years later, the Spaniards returned to Nicaragua, this time to its southwestern part. The first attempt to conquer Nicaragua was by the conquistador Gil González Dávila, who had arrived in Panama in January 1520. In 1522, González Dávila ventured to the area that later became the Rivas Department of Nicaragua. There he encountered an indigenous Nahua tribe led by chief Macuilmiquiztli, whose name has sometimes been erroneously referred to as " Nicarao " or "Nicaragua". The tribe's capital was Quauhcapolca. González Dávila conversed with Macuilmiquiztli thanks to two indigenous interpreters who had learned Spanish, whom he had brought along. After exploring and gathering gold in the fertile western valleys, González Dávila and his men were attacked and driven off by the Chorotega, led by chief Diriangén. The Spanish tried to convert the tribes to Christianity; Macuilmiquiztli's tribe was baptized, but Diriangén was openly hostile to the Spaniards. Western Nicaragua, at the Pacific Coast, became a port and shipbuilding facility for the Galleons plying the waters between Manila, Philippines and Acapulco, Mexico.

The first Spanish permanent settlements were founded in 1524. That year, the conquistador Francisco Hernández de Córdoba founded two of Nicaragua's main cities: Granada on Lake Nicaragua, and then León, west of Lake Managua. Córdoba soon built defenses for the cities and fought against incursions by other conquistadors. Córdoba was later publicly beheaded for having defied his superior, Pedro Arias Dávila. Córdoba's tomb and remains were discovered in 2000 in the ruins of León Viejo.

The clashes among Spanish forces did not impede their destruction of the indigenous people and their culture. The series of battles came to be known as the "War of the Captains". Pedro Arias Dávila was a winner; although he lost control of Panama, he moved to Nicaragua and established his base in León. In 1527, León became the capital of the colony. Through diplomacy, Arias Dávila became the colony's first governor.

Without women in their parties, the Spanish conquerors took Nahua and Chorotega wives and partners, beginning the multiethnic mix of indigenous and European stock now known as " mestizo ", which constitutes the great majority of the population in western Nicaragua. Many indigenous people were killed by European infectious diseases, compounded by neglect by the Spaniards, who controlled their subsistence. Many other indigenous peoples were captured and transported as slaves to Panama and Peru between 1526 and 1540.

In 1610, the Momotombo volcano erupted, destroying the city of León. The city was rebuilt northwest of the original, which is now known as the ruins of León Viejo. During the American Revolutionary War, Central America was subject to conflict between Britain and Spain. British navy admiral Horatio Nelson led expeditions in the Battle of San Fernando de Omoa in 1779 and on the San Juan River in 1780, the latter of which had temporary success before being abandoned due to disease.
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