Currency of Uruguay issued by Banco Nacional of Buenos Aires for Provincia Oriental ("Eastern Province", i.e., Uruguay). All parties to the conflict used the Spanish dollar (Spanish "peso", Portuguese " patacão"), which circulated with a value of 8 Spanish reales or 960 Brazilian reis. Circulation consisted of coins from mints in Mexico, Potosí, Brazil, and Buenos Aires. During the turbulent period of conflict preceding independence, a considerable amount of poor-quality copper coin from both Buenos Aires and Brazil came into circulation. Peso (Patacón) = 8 Reales = 800 Centésimos de real (centavos) Onza de oro = 16 Pesos In 1828, Uruguay's currency was
National Observatory (Brazil) National Observatory (Brazil) The National Observatory (Portuguese: "Observatório Nacional" or "ON")) is an institution localized in Rio de Janeiro, Brazil. Founded by Pedro I on October 15, 1827, it is one of the oldest scientific institutions in the country. Its initial purpose was to guide the geographic studies of Brazil and teaching navigation. The institute is responsible for the Brazilian Official Time and performs various researches and studies in Astronomy, Astrophysics and Geophysics. It offers post-graduate courses leading masters and doctorate degree. There has been astronomical observation in Brazil since the colonial times. According to Father Serafim Leite, the Jesuits