History of Porto Velho

prospered during the rubber boom, but then when low-cost Malaysian rubber made rubber from the Amazon uncompetitive, the region's economy ground to a halt. Cities like Santo Antônio do Madeira, which had a tram line and a weekly newspaper by the time of Porto Velho's foundation, are nothing but ruins nowadays.

Porto Velho's survival is associated with the better conditions of the area where it was built, its easy access by the river and its harbor: these were all considerations in the choice of Porto Velho as the capital of the newly formed Federal Territory of Guaporé, in 1943. Only with the beginning of World War II was there another cycle of progress in the region. When the Allied forces lost control over the Malaysian rubber, Amazon's was needed due to the war effort. This produced what is known in Brazil as the "second rubber boom". But when the war ended, the region's economy once again came to a halt.

Porto Velho's modern history begins with the discovery of cassiterite around the city, and of gold on the Madeira River, at the end of the 1950s. In addition, the government's decision to allow large cattle farms in the territory began a trend of migration into the city. Almost one million people moved to Rondônia, and Porto Velho's population increased to three hundred thousand. This intense migration caused much trouble for the city. Among many other problems, the suburban boroughs, for example, are nothing but shanty towns