two other meanings: "Mother of the Winds" and "Cashew Mountain". The first meaning comes from the windy climate in the region, where indigenous people believed that the winds that blew southern Venezuela came from that place. The second, "Cashew Mountain", is due to many mountains and hills that exist in the area. History The first Portuguese settlers arrived in the region by the Branco River. Before the arrival of the Portuguese, the English and the Dutch were already attracted to the region, to explore the Branco River Valley through the Guyanas. Portugal's sovereignty over the region was only established after the Spaniards invaded the northern part of the Branco River, along with the Uraricoera River. From 1725, Carmelite missionaries began the task of converting the indigenous peoples in the region. The Portuguese occupation intensified from the 1730s when it advances along the Branco River in search of consolidation of the borders and indigenous labour. For this, they organize rescue troops (purchase of indigenous people transformed into slaves during wars of opposing ethnic groups), war troops (punishment and enslavement of indigenous people who attacked Portuguese nuclei or prevented evangelization) and the search for Brazilian products for sale, the so-called sertão drugs. Also, they promoted descents – villages of missionaries and indigenous volunteers or compulsory. In the middle of the 18th century, the Portuguese Crown became concerned with the constant Spanish expeditions to the western region of the Amazon. Thus, the idea of creating the Royal Captaincy of São José do Rio Negro was considered, which occurred through the Royal Charter of March 3, 1755. The main reason for the creation of the captaincy was the fear of the Spanish threat from the Viceroyalty of Peru, and the arising fear from the Dutch expeditions in Suriname to trade and imprison indigenous peoples. The demarcations foresaw by the Treaty of Madrid, of 1750, also lead to a great extent: with the creation of a new administrative unit in the region, the intention was to implement, in practice, the colonization of the Upper Negro River, creating the necessary infrastructure for the meeting and the work of the Portuguese and Spanish demarcation committees, and this meeting never took place, having Portuguese moulds temporarily occupied the course of the lower Branco River in the meantime, carrying out plantations of manioc and other food, for the provisioning of the Commission. The São Joaquim Fort, built in 1755