History of Haiti
Following the arrival of Europeans, La Hispaniola's indigenous population suffered greatly to near extinction, in possibly the worst case of depopulation in the Americas. A commonly accepted hypothesis attributes the high mortality of this colony in part to European diseases to which the natives had no immunity. A small number of Taínos were able to survive and set up villages elsewhere. Spanish interest in Hispaniola began to wane in the 1520s, as more lucrative gold and silver deposits were found in Mexico and South America. Thereafter, the population of Spanish Hispaniola grew at a slow pace.
History of Nicaragua
In the west and highland areas where the Spanish settled, the indigenous population was almost completely wiped out by the rapid spread of new diseases brought by the Spaniards, for which the native population had no immunity, and the virtual enslavement of the remainder of the indigenous people. In the east where the Europeans did not settle most indigenous groups survived. The English introduced guns and ammunition to one of the local peoples, the Bawihka, who lived in northeast Nicaragua. The Bawihka later intermarried with runaway slaves from Britain's Caribbean possessions, and the resulting population, with its access to superior weapons, began to expand its territory and push other indigenous groups into the interior. This Afro-indigenous group became known to the Europeans as Miskito, and the displaced survivors of their expansionist activities were called the Sumu.