Nicaragua (pronounced /ˌnɪkəˈrɑːɡwə/) officially the Republic of Nicaragua (Spanish: República de Nicaragua, pronounced [reˈpuβlika ðe nikaˈɾaɣwa]  ( listen)), is a representative democratic republic. It is the largest country in Central America with an area of 130,373 km2. The country is bordered by Honduras to the north and Costa Rica to the south. The Pacific Ocean lies to the west of the country, the Caribbean Sea to the east. Falling within the tropics, Nicaragua sits between 11 degrees and 14 degrees north of the Equator, in the Northern Hemisphere. Nicaragua's abundance of biologically significant and unique ecosystems contribute to Mesoamerica's designation as a biodiversity hotspot. Nicaragua's capital city is Managua, with approximately one-fourth of Nicaraguans living there. The origin of the name "Nicaragua" is somewhat unclear; one theory is that it is a portmanteau coined by Spanish colonists based upon the name of local chief Nicarao at that time, and the Spanish language word for water "agua". Another theory is that it may have meant "surrounded by water" in an indigenous language. In both cases the name appears to reference either the country's two large freshwater lakes, Lake Nicaragua (19th largest in the world) and Lake Managua, or the fact that it is bounded on the east and the west coasts by oceans. In Pre-Columbian times, in what is now known as Nicaragua, the Indigenous people were part of the Intermediate Area located between the Mesoamerican and Andean cultural regions and within the influence of the Isthmo-Colombian area. It was the point where the Mesoamerican and South American native cultures met. This is confirmed by the ancient footprints of Acahualinca, along with other archaeological evidence, mainly in the form of ceramics and statues made of volcanic stone like the ones found on the island of Zapatera and petroglyphs found on Ometepe island. The Pipil migrated from Central Mexico after 500 CE.[4] At the end of the 15th century, western Nicaragua was inhabited by several indigenous peoples related by culture to the Mesoamerican civilisations and by language to the Mesoamerican Linguistic Area.[5] They were primarily farmers who lived in towns, organized into small kingdoms. Meanwhile, the Caribbean coast of Nicaragua was inhabited by other peoples, mostly chibcha related groups, that had migrated from what is now Colombia. They lived a less sedentary life based on hunting and gathering.[6] The people of eastern Nicaragua appear to have traded with, and been influenced by, the native peoples of the Caribbean, as round thatched huts and canoes, both typical of the Caribbean, were common in eastern Nicaragua. In the west and highland areas, occupying the territory between Lake Nicaragua and the Pacific Coast, the Niquirano were governed by chief Nicarao, or Nicaragua, a rich ruler who lived in Nicaraocali, now the city of Rivas. The Chorotega lived in the central region of Nicaragua. These two groups had intimate contact with the Spanish conquerors, paving the way for the racial mix of native and European stock now known as mestizos.[7] However, within three decades an estimated Indian population of one million plummeted, as approximately half of the indigenous people in western Nicaragua died from the rapid spread of new diseases brought by the Spaniards, something the indigenous people of the Caribbean coast managed to escape due to the remoteness of the area.[7] In 1502, Christopher Columbus was the first European known to have reached what is now Nicaragua as he sailed south along the Central America isthmus. On his fourth voyage Columbus sailed alongside and explored the Mosquito Coast on the east of Nicaragua.[8] The first attempt to conquer what is now known as Nicaragua was by Gil González Dávila,[9] whose Central American exploits began with his arrival in Panama in January 1520. González claimed to have converted some 30,000 indigenous peoples and discovered a possible transisthmian water link. After exploring and gathering gold in the fertile western valleys González was attacked by the indigenous people, some of whom were commanded by Nicarao and an estimated 3,000 led by chief Diriangén.[10] González later returned to Panama where governor Pedro Arias Dávila attempted to arrest him and confiscate his treasure, some 90,000 pesos of gold. This resulted in González fleeing to Santo Domingo. It was not until 1524 that the first Spanish permanent settlements were founded.[9] Conquistador Francisco Hernández de Córdoba founded two of Nicaragua's principal towns in 1524: Granada on Lake Nicaragua was the first settlement and León east of Lake Managua came after. Córdoba soon found it necessary to prepare defenses for the cities and go on the offensive against incursions by the other conquistadores. Córdoba was later publicly beheaded following a power struggle with Pedrarias Dávila, his tomb and remains were discovered some 500 years later in the Ruins of León Viejo.[11] The inevitable clash between the Spanish forces did not impede their devastation of the indigenous population. The Indian civilization was destroyed. The series of battles came to be known as The War of the Captains.[12] By 1529, the conquest of Nicaragua was complete. Several conquistadores came out winners, and some were executed or murdered. Pedrarias Dávila was a winner; although he had lost control of Panama, he had moved to Nicaragua and established his base in León. Through adroit diplomatic machinations, he became the first governor of the colony.[11] The land was parceled out to the conquistadores. The area of most interest was the western portion. Many indigenous people were soon enslaved to develop and maintain "estates" there. Others were put to work in mines in northern Nicaragua, few were killed in warfare, and the great majority were sent as slaves to other New World Spanish colonies, for significant profit to the new landed aristocracy. Many of the indigenous people died as a result of disease and neglect by the Spaniards who controlled everything necessary for their subsistence.[9] In 1536, the Viceroyalty of New Spain was established. By 1570, the southern part of New Spain was designated the Captaincy General of Guatemala. The area of Nicaragua was divided into administrative "parties" with León as the capital. In 1610, the Momotombo volcano erupted, destroying the capital. It was rebuilt northwest of what is now known as the Ruins of Old León. Nicaragua became a part of the Mexican Empire and then gained its independence as a part of the United Provinces of Central America in 1821 and as an independent republic in its own right in 1838. The Mosquito Coast based on the Caribbean coast was claimed by the United Kingdom and its predecessors as a protectorate from 1655 to 1850; this was delegated to Honduras in 1859 and transferred to Nicaragua in 1860, though it remained autonomous until 1894. José Santos Zelaya, president of Nicaragua from 1893-1909, managed to negotiate for the annexation of this region to the rest of Nicaragua. In his honour the entire region was named Zelaya. Much of Nicaragua's independence was characterized by rivalry between the liberal elite of León and the conservative elite of Granada. The rivalry often degenerated into civil war, particularly during the 1840s and 1850s. Initially invited by the Liberals in 1855 to join their struggle against the Conservatives, a United States adventurer named William Walker (later executed in Honduras) set himself up as president of Nicaragua, after conducting a farcical election in 1856. Costa Rica, Honduras and other Central American countries united to drive him out of Nicaragua in 1857, after which a period of three decades of Conservative rule ensued.[13] In the 1800s Nicaragua experienced a wave of immigration, primarily from Europe. In particular, families from Germany, Italy, Spain, France and Belgium moved to Nicaragua to set up businesses with money they brought from Europe. They established many agricultural businesses such as coffee and sugar cane plantations, and also newspapers, hotels and banks. Throughout the late nineteenth century the United States (and several other European powers) considered a scheme to build a canal across Nicaragua linking the Pacific Ocean to the Atlantic. A bill was put before the U.S. Congress in 1899 to build the canal, but it was not passed, and instead the construction of the Panama Canal began. In 1909, the United States provided political support to conservative-led forces rebelling against President Zelaya. U.S. motives included differences over the proposed Nicaragua Canal, Nicaragua's potential as a destabilizing influence in the region, and Zelaya's attempts to regulate foreign access to Nicaraguan natural resources. On November 18, 1909, U.S. warships were sent to the area after 500 revolutionaries (including two Americans) were executed by order of Zelaya. The U.S. justified the intervention by claiming to protect U.S. lives and property. Zelaya resigned later that year. In August 1912 the President of Nicaragua, Adolfo Díaz, requested that the Secretary of War, General Luis Mena, resign for fear that he was leading an insurrection. Mena fled Managua with his brother, the Chief of Police of Managua, to start an insurrection. When the U.S. Legation asked President Díaz to ensure the safety of American citizens and property during the insurrection he replied that he could not and that... U.S. Marines occupied Nicaragua from 1912 to 1933,[15] except for a nine month period beginning in 1925. From 1910 to 1926, the conservative party ruled Nicaragua. The Chamorro family, which had long dominated the party, effectively controlled the government during that period. In 1914, the Bryan-Chamorro Treaty was signed, giving the U.S. control over the proposed canal, as well as leases for potential canal defenses.[16] Following the evacuation of U.S. marines, another violent conflict between liberals and conservatives took place in 1926, known as the Constitutionalist War, which resulted in a coalition government and the return of U.S. Marines.[17] From 1927 until 1933, Gen. Augusto César Sandino led a sustained guerrilla war first against the Conservative regime and subsequently against the U.S. Marines, who withdrew upon the establishment of a new Liberal government. Sandino was the only Nicaraguan general to refuse to sign the el tratado del Espino Negro agreement and then headed up to the northern mountains of Las Segovias, where he fought the U.S. Marines for over five years.[18] The revolt finally forced the United States to compromise and leave the country. When the Americans left in 1933, they set up the Guardia Nacional (National Guard),[19] a combined military and police force trained and equipped by the Americans and designed to be loyal to U.S. interests. Anastasio Somoza García, a close friend of the American government, was put in charge. He was one of the three rulers of the country, the others being Sandino and the President Juan Bautista Sacasa.