Borja, Peru
Borja is a settlement in the Datem del Marañón Province of the Loreto Region of Peru. The hamlet is located on the banks of the Marañón River at an elevation of . In 2017 the population was 329. Established in 1619, Borja was one of the first settlements of Spanish colonists in the Amazon lowlands of Peru. Borja became a Roman Catholic mission of the Jesuit Order in 1638. Because of European diseases and enslavement of the indigenous Maina and other ethnic groups, the population of Borja and its vicinity declined from about 3,000 in 1638 to a few  hundred by the late 18th century. History. The first Spaniard known to have been in the Borja region was Juan de Salinas y Loyola who came this way in 1557, floating down the Marañón River through the tumultuous waters of the Pongo de Manseriche, a water gap, that marks the end of the Andes highlands and the beginning of the flat, forested upper Amazon Basin. The site of Borja is past the Pongo and was inhabited at that time by the Mainas people, one of many ethnic groups living in the region. In 1619, the settlement of Borja was founded  by Diego Baca de Vega from Loja, Ecuador. It was one of the first Spanish settlements in the lowlands of the Amazon Basin. In 1638 when the Jesuits arrived, Borja was the administrative center of a region that was called Mainas. The population of Borja in that year consisted of about 2,800 Maina and other ethnic groups and about 200 Spaniards, including a small military garrison. The population of Borja was only sustained with frequent expeditions into the jungle by soldiers and Christian Indians to capture Maina and other peoples and force them to return to or settle in Borja . In 1776, the population was 263 indigenous people and 152 Spanish and mestizos. Borja was isolated. Links with the highland areas of Peru were often through the town of Jaen, southwest in straight line distance. In 1743, travel between the two settlements still required, at the most favorable times, four days by road and 2 and one-half days floating down the Marañón, passing through the dangerous Pongo. In times of high water, the river was not navigable and Borja was isolated. Borja produced small amounts of tobacco and achiote for trade with Jaen.