The history of the city of Itaituba is inextricably linked to the exploration of the Tapajós River basin. The official founding date is considered to be 15 December 1856, when the small settlement received official status. The name of the city has deep roots in the language of the indigenous Tupi people: it comes from the words "itá" (stone) and "tyba" (many), which translates as "place of many stones". This name accurately describes the rocky riverbed near the city's waterfront.
The rise of Itaituba as an important settlement in Brazil was driven by several key factors:
- Strategic Geography: Its location on the left bank of the Tapajós River made the city an important navigational hub. It served as a natural stopover for ships and expeditions heading deeper into the Amazon.
- Trade and Resources: In the early period, the settlement's economy relied on so-called "forest commodities" (drogas do sertão) — spices, cocoa, and medicinal herbs, and later on rubber extraction, which attracted traders and adventurers to the area.
- Cultural Interaction: Initially, the territory was inhabited by indigenous tribes, particularly the Munduruku. The arrival of settlers created a unique cultural blend, where European traditions mixed with the lifestyle of the indigenous population.
In the first decades of its existence, Itaituba remained a small but significant trading outpost. Life here depended entirely on the river, which provided a connection to the outside world and sustenance for local residents.