Spaniards Vicente Yez Pinzn, Francisco de Orellana and Lope de Aguirre, Portuguese Pedro Teixeira and Antnio Raposo Tavares o Velho, and Frenchman Charles Marie de La Condamine were involved in the exploration of what area?
Charles Marie de La Condamine Charles Marie de La Condamine Charles Marie de La Condamine (28 January 1701 – 4 February 1774) was a French explorer, geographer, and mathematician. He spent ten years in present-day Ecuador measuring the length of a degree latitude at the equator and preparing the first map of the Amazon region based on astronomical observations. Furthermore he was a contributor to the Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers"." Charles Marie de La Condamine was born in Paris as a son of well-to-do parents, Charles de La Condamine and Louise Marguerite Chourses. He studied at the Collège
António Raposo Tavares António Raposo Tavares António Raposo Tavares "o Velho" (Portuguese: "the old one") (1598–1658) was a Portuguese colonial bandeirante who explored mainland eastern South America and claimed it for Portugal, extending the territory of the colony beyond the limits imposed by the treaty of Tordesillas. He also led the largest expedition ever made in the Americas, covering over 10,000 kilometres (over 6,200 mi) around South America, unifying completely the two large South American river basins and the Andes in a single voyage. Raposo Tavares departed from São Paulo towards the rivers of the Río de la Plata Basin (mainly the Paraguay