Patagonia is a sparsely populated region at the southern end of South America, shared by Chile and Argentina. The region comprises the southern section of the Andes mountains and the deserts and grasslands to the east. Patagonia is one of the few regions with coasts on three oceans, with the Pacific Ocean to the west, the Atlantic Ocean to the east, the Southern Ocean to the south; the Colorado and Barrancas rivers, which run from the Andes to the Atlantic, are considered the northern limit of Argentine Patagonia. The archipelago of Tierra del Fuego is sometimes included as part of Patagonia. Most geographers and historians locate the northern limit of Chilean Patagonia at Huincul Fault, in Araucanía Region; the name Patagonia comes from the word patagón, used by Magellan in 1520 to describe the native tribes of the region, whom his expedition thought to be giants. It is now believed that the people he called the Patagons were Tehuelches, who tended to be taller than Europeans of the time; the Argentine researcher Miguel Doura observed that the name Patagonia derives from the ancient Greek region of modern Turkey called Paphlagonia, possible home of the patagon personage in the chivalric romances Primaleon printed in 1512, ten years before Magellan arrived in these southern lands.
The hypothesis was published in a 2011 New Review of Spanish Philology report. Argentine Patagonia is for the most part a region of steppelike plains, rising in a succession of 13 abrupt terraces about 100 metres at a time, covered with an enormous bed of shingle bare of vegetation. In the hollows of the plains are ponds or lakes of fresh and brackish water. Towards Chilean territory the shingle gives place to porphyry and basalt lavas, animal life becomes more abundant and vegetation more luxuriant, consisting principally of southern beech and conifers; the high rainfall against the western Andes and the low sea surface temperatures offshore give rise to cold and humid air masses, contributing to the ice-fields and glaciers, the largest ice-fields in the Southern hemisphere outside of Antarctica. Among the depressions by which the plateau is intersected transversely, the principal ones are the Gualichu, south of the Río Negro, the Maquinchao and Valcheta, the Senguerr, the Deseado River. Besides these transverse depressions, there are others which were occupied by more or less extensive lakes, such as the Yagagtoo and Colhue Huapi, others situated to the south of Puerto Deseado, in the centre of the country.
In the central region volcanic eruptions, which have taken part in the formation of the plateau during the Cenozoic, cover a large part of the land with basaltic lava-caps. There, caused principally by the sudden melting and retreat of ice aided by tectonic changes, has scooped out a deep longitudinal depression, best in evidence where in contact with folded Cretaceous rocks which are uplifted by the Cenozoic granite, it separates the plateau from the first lofty hills, whose ridges are called the pre-Cordillera. To the west of these, a similar longitudinal depression extends all along the foot of the snowy Andean Cordillera; this latter depression contains the richest and most fertile land of Patagonia. Lake basins along the Cordillera were excavated by ice-streams, including Lake Argentino and Lake Fagnano, as well as coastal bays such as Bahía Inútil; the geological limit of Patagonia has been proposed to be Huincul Fault which forms a major discontinuity. The fault truncates various structures including the Pampean orogen found further north.
The ages of base arocks change abruptly across the fault. There have been discrepancies among geologists on the origin of the Patagonian landmass. Víctor Ramos has proposed that the Patagonian landmass originated as an allochthonous terrane that separated from Antarctica and docked in South America 250 to 270 Ma in the Permian era. A 2014 study by R. J. Pankhurst and coworkers rejects any idea of a far-travelled Patagonia claiming it is of parautochtonous origin; the Mesozoic and Cenozoic deposits have revealed a most interesting vertebrate fauna. This, together with the discovery of the perfect cranium of a chelonian of the genus Niolamia, identical with Ninjemys oweni of the Pleistocene age in Queensland, forms an evident proof of the connection between the Australian and South American continents; the Patagonian Niolamia belongs to the Sarmienti Formation. Fossils of the mid-Cretaceous Argentinosaurus, which may be the largest of all dinosaurs, have been found in Patagonia, a model of the mid-Jurassic Piatnitzkysaurus graces the concourse of the Trelew airport.
Of more than paleontological interest, the middle Jurassic Los Molles Formation and the still richer late Jurassic and early Cretaceous Vaca Muerta formation above it in the Neuquén basin are reported to contain huge hydrocarbon reserves accessible through hydraulic fracturing. Other specimens of the interesting fauna of Patagonia, belonging to the Middle Cenozoic, are the gigantic wingless birds, exceeding in size any hitherto known, the singular mammal Pyrotherium of large dimensions. In
Carlos Saúl Menem Akil is an Argentine politician, President of Argentina from July 8, 1989 to December 10, 1999. He has been a Senator for La Rioja Province since December 10, 2005. Born in Anillaco, Menem became a Peronist during a visit to Buenos Aires, he led the party in his home province of La Rioja, was elected governor in 1973. He was deposed and detained during the 1976 Argentine coup d'état, was elected governor again in 1983, he defeated the Buenos Aires governor Antonio Cafiero in the primary elections for the 1989 presidential elections, which he won. Hyperinflation forced outgoing president Raúl Alfonsín to resign early, shortening the presidential transition. Menem supported the Washington Consensus, tackled inflation with the Convertibility plan in 1991; the plan was complemented by a series of privatizations, was a success. Argentina re-established diplomatic relations with the United Kingdom, suspended since the 1982 Falklands War, developed special relations with the United States.
The country suffered two terrorist attacks. The Peronist victory in the 1993 midterm elections allowed him to force Alfonsín to sign the Pact of Olivos for the 1994 amendment of the Argentine Constitution; this amendment allowed Menem to run for re-election in 1995. A new economic crisis began, the opposing parties formed a political coalition that won the 1997 midterm elections and the 1999 presidential election. Menem ran for the presidency again in 2003, but faced with a defeat in a ballotage against Néstor Kirchner, he chose to pull out of the ballotage handing the presidency to Kirchner, he was elected senator for La Rioja in 2005. At 88, he is the oldest living former Argentine president. Carlos Saúl Menem was born in 1930 in Anillaco, a small town in the mountainous north of La Rioja Province, Argentina, his parents, Saúl Menem and Mohibe Akil, were Syrian nationals from Yabroud who had emigrated to Argentina. He attended elementary and high school in La Rioja, joined a basketball team during his university studies.
He visited Buenos Aires in 1951 with the team, met the president Juan Perón and his wife Eva Perón. This influenced Menem to become a Peronist, he studied law at the National University of Córdoba, graduating in 1955. After President Juan Peron's overthrow in 1955, Menem was incarcerated, he joined the successor to the Peronist Party, the Justicialist Party. He was elected president of its La Rioja Province chapter in 1973. In that capacity, he was included in the flight to Spain that brought Perón back to Argentina after his long exile. According to the Peronist politician Juan Manuel Abal Medina, Menem played no special part in the event. Menem was elected governor in 1973, he was deposed during the 1976 Argentine coup d'état that deposed the president Isabel Martínez de Perón. He was accused of corruption, having links with the guerrillas of the Dirty War, he was detained on March 25, kept for a week at a local regiment, moved to a temporary prison at the ship "33 Orientales" in Buenos Aires. He was detained alongside former ministers Antonio Cafiero, Jorge Taiana, Miguel Unamuno, José Deheza, Pedro Arrighi, the unionists Jorge Triaca, Diego Ibáñez, Lorenzo Miguel, the diplomat Jorge Vázquez, the journalist Osvaldo Papaleo, the former president Raúl Lastiri.
He shared a cell with Juan Perón's personal physician. During this time he helped the chaplain Lorenzo Lavalle, despite being a Muslim. In July he was sent to a permanent prison, his wife Zulema rejected his conversion to Christianity. His mother died during the time he was a prisoner, dictator Jorge Rafael Videla denied his request to attend her funeral, he was released on July 29, 1978, on the condition that he live in a city outside his home province without leaving it. He settled in Mar del Plata. Menem met Admiral Eduardo Massera, who intended to run for president, had public meetings with personalities such as Carlos Monzón, Susana Giménez, Alberto Olmedo; as a result, he was forced to reside in Tandil. He had to report daily to Chief of Police Hugo Zamora; this forced residence was lifted in February 1980. He returned to Buenos Aires, to La Rioja, he resumed his political activities, despite the prohibition, was detained again. His new forced residence was in Formosa Province, he was one of the last politicians to be released from prison by the National Reorganization Process.
Military rule ended in 1983, the radical Raúl Alfonsín was elected president. Menem ran for governor again, was elected by a clear margin; the province benefited from tax regulations established by the military, which allowed increased industrial growth. His party got control of the provincial legislature, he was re-elected in 1987 with 63% of the vote; the PJ was divided in two factions, the conservatives that still supported the political doctrines of Juan and Isabel Perón, those who proposed a renovation of the party. The internal disputes ceased in 1987. Menem, with his prominent victory in his district, was one of the leading figures of the party, disputed its leadership. Antonio Cafiero, elected governor of Buenos Aires Province, led the renewal of the PJ, was considered their most candidate for the presidency. Menem, on the other hand, was seen as a populist leader. Using a big tent approach, he got support from several unrelated political figures; as a result, he defeated Cafiero in the primary elections.
He sought alliances with Bunge and Born, union leaders, former members of Montoneros, the AAA, people from the church, "Carapintadas", etc. He promise
Río Negro Province
Río Negro is a province of Argentina, located at the northern edge of Patagonia. Neighboring provinces are from the south clockwise Chubut, Neuquén, Mendoza, La Pampa and Buenos Aires. To the east lies the Atlantic Ocean, its capital is Viedma. Other important cities include the ski resort town of General Roca and Cipolletti. Ferdinand Magellan was the first European explorer to visit the coasts of the provinces in 1520. Italian priest Nicolás Mascardi founded the Jesuit mission Nuestra Senora de Nahuel Huapi in 1670 at the shore of the Nahuel Huapi Lake, at the feet of the Andes range. Part of the Argentine territory called Patagonia, in 1884 it was organised into the Territorio Nacional del Río Negro and General Lorenzo Vintter was appointed as the territory's first governor, it was only in 1957. Río Negro is one of the six provinces, it is bounded to the north by the Colorado River which separates it from La Pampa Province, to the east by the Atlantic Ocean and to the west by the Andes and the Limay River.
The 42nd parallel south marks the southern limit of the province. With an area of 203,013 square kilometres, it is the 4th largest province by area; the climate of the province is temperate at low elevations, cold in the higher Andean peaks. The mean annual temperatures in the province are cold for its latitude owing to the marine currents to the east and higher altitude to the west. Mean annual temperatures in the province can vary, depending on distance from the sea; the northern parts of the province are the warmest, with a mean annual temperature of more than 15 °C while the coldest areas are found in the Cordillera where the mean annual temperatures are less than 10 °C. At the highest peaks, the mean annual temperature is less than freezing. Summer temperatures can exceed 40 °C although the mean January temperatures range from 20 to 24 °C. In contrast, the Andean region has milder summers with mean January temperatures of 15 °C or less, depending on the altitude. In July, mean temperatures range from 7 to 8 °C on the coast in the north to around 2 to 3 °C in the central plateau.
Relative humidity is lower in the central plateau where they average 50%. Along the coastal regions, humidity is higher with a mean annual humidity of 60% while the Andean region has the highest humidity with an average annual humidity exceeding 65% due to the lower temperatures there. In all locations, humidity is lower in the summer and higher in the winter owing to the higher temperatures in the summer; the Andes block most of the moisture from the Pacific Ocean from coming in, causing it to release most of the precipitation on its western slopes and as such, most of the province is dry, with a mean annual precipitation around 200 millimetres. Coastal areas and northern parts of the province receive a higher precipitation, where it can average above 300 millimetres a year; the Andean region receives the most precipitation with areas receiving a mean annual precipitation of 200 to 1,000 millimetres in which the precipitation gradient is strong and increases westwards. In some places, precipitation can exceed 3,000 millimetres a year.
Most of the Andean region has a rainfall pattern, Mediterranean like, similar to Central Chile in which most of the precipitation falls during the winter months and summers are dry. One dominant characteristic of the climate is the strong winds that are observed throughout the province. Summers tend to be windier than winters. Winds coming from the west and northwest are common, occurring 50% of the time. There is some tendency for the winds to come from the east on the coastal regions when sea breezes from the east can occur when westerly winds are weak, which can be felt up to 10 kilometres from the coast; the mean wind speed throughout the province varies with the northern parts having the lowest wind speeds while the highest altitude areas being the windiest. Except for the northern parts of the province, mean annual wind speeds exceed 4 metres per second. Cloud cover varies throughout the province, ranging from more than 60% in the Andean region to about 40% in the coastal areas; the central plateaus have intermediate amounts of cloud cover between these 2 regions.
As such, the Andean region is cloudier than the rest of the province. Sunshine ranges from 10–11 hours of sunshine/day in January to about 5 hours of sunshine/day to less than 3 hours of sunshine/day in July. According to the results from the 2010 census, the province has a population of 638,645 with 316,774 males and 321,871 females, it constitutes 1.6% of the total population in Argentina. This represented a 15.5% increase in the population compared to 2001 census which had 552,822 inhabitants. Amongst of all the provinces in Patagonia, it is the most populous, containing 30.4% of the total population in Patagonia. The province is home to four indigenous groups: The Tehuelches, the Puelches, the Pehuenches, the Mapuches. All of the indigenous population in the province are the Mapuches with the rest being small in number where their few descendants live in the neighbouring provinces; the Mapuches along with some of the Pehuenches lived in the western parts of the province although today, they live in the southern
Viedma, Río Negro
Viedma is the capital and fourth largest city of the Río Negro Province, in South-Central Argentina. The city has 47,246 inhabitants, is located on the southern margin of the Negro River, about 30 kilometres off the Atlantic Coast, 960 km from the city of Buenos Aires on the National Route 3. Together with Carmen de Patagones city across the river in the Buenos Aires Province, it is the oldest settlement in Patagonia, founded by Francisco de Viedma y Narváez under the name of Nuestra Señora del Carmen on 22 April 1779; the two cities were one, both called Carmen de Patagones. The original fort was built on the south side of the river in modern Viedma, but it was destroyed within a few years. A new fort was built in the current day Carmen de Patagones; this fort lasted much longer, the tower still stands today. The town grew here, expanded back across the river into modern day Viedma. At some point, the town decided to split with the Río Negro as their border. With the Conquest of the Desert, the city became the capital of all the Argentine Patagonia, when it was divided in further smaller territories, the capital of the Río Negro Territory.
Alvaro Barros, the first governor of Río Negro, changed the name of the city to Viedma, in 1879. During severe flooding in 1900, the capital of Río Negro was temporary moved to Choele Choel, but it was restored to Viedma. During the presidency of Raúl Alfonsín, a proposal was made to move the federal capital from Buenos Aires to Viedma in 1986; this was to reduce congestion in Buenos Aires, to help develop Patagonia, to promote the development of the interior. A bill to that effect was passed by Congress the following year, but owing to economic problems, the project had stagnated by the end of the Alfonsín administration in 1989; the main economical activities in the area of the Valle Inferior are cattle, as well as some agriculture with onion and alfalfa being the most important. However, Viedma is an administrative city, being the capital city of the province; the Gobernador Castello Airport serves flights to Buenos Aires, Neuquén, Puerto Madryn, Comodoro Rivadavia, Mar del Plata, other cities in Argentina.
It is located 6 km from the city, has an average annual traffic of 30,000 passengers. 30 km downstream from Viedma, on the Atlantic shore, the El Cóndor beach resort town is the most visited tourist beach in the area. The Servicios Ferroviarios Patagónico connect with San Carlos de Bariloche. Viedma has a cool semi-arid climate; the nearby South Atlantic Ocean and the Viedma river moderate the climate. The city is windy throughout the entire year. Average windspeeds ranging from a low of 22.1 kilometres per hour to 30.5 kilometres per hour in December. The windiest period is from October to February while March to June are the least windiest; the cause of this is attributed to the effects produced by the convergence of distinct wind currents originating from the general atmospheric circulation from both the South Atlantic High and the South Pacific High. Being located in a transitional area between the South Atlantic High and the South Pacific High, this geographic location is responsible for the variability in wind speeds throughout the year.
Strong gusts exceeding 110 kilometres per hour can occur. Winters are cool with a July mean of 6.6 °C and frosts are common, averaging 9–10 days from June to August. During this time of the year, overcast days are more common, averaging 9–10 days per month although sunny days are common as well. Spring and fall are transition seasons featuring warm daytime temperatures and cool nighttime temperatures and are variable with some days reaching above 39 °C and below −5 °C. Summers are hot and dry with a January high of 30.4 °C and a low of 14.8 °C. The diurnal range is large along with the temperature profile of Viedma makes it appropriate for the development of wide variety of subtropical crops. Humid days are rare owing to the low humidity and a dewpoint temperature of 12 to 13 °C. During the hottest days in summer when the wind is from the northwest or west, sea breezes can occur that can move inland in the opposite of the mentioned wind directions which moderate summer temperatures; this occurs because when the surrounding land heats faster than the sea, causing the land to have lower atmospheric pressure than the sea which has a higher atmospheric pressure.
As a result, the pressure difference causes the sea breeze to move inland to the lower pressure area. In contrast, during night, the reverse occurs. Frosts that occur in winter are of short duration and are not intense; the average date of the first frost occurs on April 8 and the last frost occurs on November 21 and there are 210 frost free days in an average year. Relative humidity is low, with the summer months being drier than the winter months. Nonetheless, it is common to have high humidity conditions during early morning and late evening when temperatures are lower. On average, Viedma receives 394.2 millimetres of precipitation per year, evenly distributed throughout the year. During spring and summer, precipitation occurs irregularly and there is a water deficit, owing to higher temperatures and windier conditions that promote evapotranspiration and drier conditions. In winter and autumn, precipitation occurs resulting in less water deficit owing to lower temperatures, more moderate w
The May Revolution was a week-long series of events that took place from May 18 to 25, 1810, in Buenos Aires, capital of the Viceroyalty of the Río de la Plata. This Spanish colony included the territories of present-day Argentina, Paraguay and parts of Brazil; the result was the removal of Viceroy Baltasar Hidalgo de Cisneros and the establishment of a local government, the Primera Junta, on May 25. It was the first successful revolution in the South American Independence process; the May Revolution was a direct reaction to Spain's Peninsular War. In 1808, King Ferdinand VII of Spain abdicated in favor of Napoleon, who granted the throne to his brother, Joseph Bonaparte. A Supreme Central Junta led resistance to Joseph's government and the French occupation of Spain, but suffered a series of reversals that resulted in the Spanish loss of the northern half of the country. On February 1, 1810, French troops gained control of most of Andalusia; the Supreme Junta retreated to Cadiz and dissolved itself, the Council of Regency of Spain and the Indies replaced it.
News of these events arrived in Buenos Aires on May 18, brought by British ships. Viceroy Cisneros tried to maintain the political status quo, but a group of criollo lawyers and military officials organized an open cabildo on May 22 to decide the future of the Viceroyalty. Delegates denied recognition to the Council of Regency in Spain and established a junta to govern in place of Cisneros, since the government that had appointed him Viceroy no longer existed. To maintain a sense of continuity, Cisneros was appointed president of the Junta. However, this caused much popular unrest, so he resigned under pressure on May 25; the newly formed government, the Primera Junta, included only representatives from Buenos Aires and invited other cities of the Viceroyalty to send delegates to join them. This resulted in the outbreak of war between the regions that accepted the outcome of the events at Buenos Aires and those that did not; the May Revolution began the Argentine War of Independence, although no formal declaration of independence was issued at the time and the Primera Junta continued to govern in the name of the deposed king, Ferdinand VII.
As similar events occurred in many other cities of the continent, the May Revolution is considered one of the early events of the Spanish American wars of independence. Historians today debate whether the revolutionaries were loyal to the Spanish crown or whether the declaration of fidelity to the king was a necessary ruse to conceal the true objective—to achieve independence—from a population, not yet ready to accept such a radical change. A formal declaration of independence was issued at the Congress of Tucumán on July 9, 1816; the United States' declaration of independence from Great Britain in 1776 led criollos to believe that revolution and independence from Spain were feasible. Between 1775 and 1783, the American patriots of the Thirteen Colonies waged the American Revolutionary War against both the local loyalists and the Kingdom of Great Britain establishing a popular government in the place of the British monarchy; the fact that Spain aided the colonies in their struggle against Britain weakened the idea that it would be a crime to end one's allegiance to the parent state.
The ideals of the French Revolution of 1789 spread across Europe and the Americas as well. The overthrow and execution of King Louis XVI and Queen Marie Antoinette ended centuries of monarchy and removed the privileges of the nobility. Liberal ideals in the political and economic fields developed and spread through the Atlantic Revolutions across most of the Western world; the concept of the divine right of kings was questioned by the French Declaration of the Rights of Man and of the Citizen, by the oft-quoted statement that "all men are created equal" in the United States Declaration of Independence and by the Spanish church. However, the spread of such ideas was forbidden in the Spanish territories, as was the sale of related books or their unauthorized possession. Spain instituted those bans when it declared war on France after the execution of Louis XVI and retained them after the peace treaty of 1796. News of the events of 1789 and copies of the publications of the French Revolution spread around Spain despite efforts to keep them at bay.
Many enlightened criollos came into contact with liberal authors and their works during their university studies, either in Europe or at the University of Chuquisaca. Books from the United States found their way into the Spanish colonies through Caracas, owing to the proximity of Venezuela to the United States and the West Indies; the Industrial Revolution started in Britain, with the use of plateways and steam power. This led to dramatic increases in the productive capabilities of Britain, created a need for new markets to sell its products; the Napoleonic Wars with France made this a difficult task, after Napoleon imposed the Continental System, which forbade his allies and conquests to trade with Britain. Thus Britain needed to be able to trade with the Spanish colonies, but could not do so because the colonies were restricted to trade only with their parent state. To achieve their economic objectives, Britain tried to invade Rio de la Plata and conquer key cities in Spanish America; when that failed, they chose to promote the Spanish-American aspirations of emancipation from Spain.
The mutiny of Aranjuez in 1808 led King Charles IV of Spain to abdicate in favor of his son, Ferdinand VII. Charles IV requested.
The Cisplatine War known as the Argentine-Brazilian War, was an armed conflict over an area known as Banda Oriental or the "Eastern Bank" in the 1820s between the United Provinces of the Río de la Plata and the Empire of Brazil in the aftermath of the United Provinces' independence from Spain. Led by José Gervasio Artigas, the region known as the Eastern Bank, in the Río de la Plata Basin, revolted against Spanish rule in 1811, against the backdrop of the 1810 May Revolution in Buenos Aires as well as the regional rebellions that followed in response to Buenos Aires' pretense of primacy over other regions of the viceroyalty. In the same context, the Portuguese Empire headquartered in Rio de Janeiro, took measures to solidify its hold on Rio Grande do Sul and to annex the region of the former Eastern Jesuit Missions. From 1814 on, the Eastern Province joined forces with the provinces of Santa Fe and Entre Rios in a loose confederation called the Federal League, which resisted Buenos Aires' authority.
After a series of banditry incidents in territory claimed by the Portuguese Empire, the Rio Grande do Sul, Portugal invaded the Eastern Bank in 1816. Artigas was defeated by the Luso-Brazilian troops in 1820 at the Battle of Tacuarembó; the Portuguese Empire formally annexed the Eastern Bank, under the name Cisplatina, with support from local elites. With the annexation, the Portuguese Empire now enjoyed strategic access to Río de la Plata and control of the estuary's main port, Montevideo. After Brazilian independence, in 1822, the Cisplatina became part of Brazil, it sent delegates to the 1823 Constitutional Convention and, under the 1824 Constitution, enjoyed a considerable degree of autonomy, more so than other provinces of the Empire. While welcoming Portuguese intervention in the rogue Eastern province, the United Provinces of the Río de la Plata urged the local populace to rise up against Brazilian authority, giving them political and material support with a view to reestablishing sovereignty over the region.
Rebels led by Fructuoso Rivera and Juan Antonio Lavalleja carried on resistance against Brazilian rule. In 1825, a Congress of delegates from all over the Eastern Bank met in La Florida and declared independence from Brazil, while reaffirming its allegiance to the United Provinces of the Río de la Plata. In response, Brazil declared war on the United Provinces; the two navies which confronted each other in the River Plate and the South Atlantic were in many way opposites. Brazil was a major naval power with 96 warships and small, an extensive coastal trade and a large international trade carried on in British and American ships; the United Provinces of the Río de la Plata had similar international trading links but had few naval pretensions. Its navy consisted of a few gunboats for port defence. Both navies were short of indigenous sailors and relied on British - and, to a lesser extent - American and French officers and men, the most notable of which were the Argentine commander, the Irish born Admiral William Brown, the commander of the Brazilian inshore squadron, the English Commodore James Norton.
The strategy of the two nations reflected their respective positions. The Brazilians imposed a blockade on the River Plate and the trade of Buenos Aires, while the Argentines vainly attempted to defy the blockade using Brown’s squadron while unleashing a swarm of privateers to attack Brazilian seaborne commerce in the South Atlantic from their bases at Ensenada and more distant Carmen de Patagones; the Argentines gained some notable successes - most notably by defeating the Brazilian flotilla on the Uruguay River at the Battle of Juncal and by beating off a Brazilian attack on Carmen de Patagones. But by 1828, the superior numbers of Brazil’s blockading squadrons had destroyed Brown’s naval force at the Monte Santiago and was strangling the trade of Buenos Aires and the government revenue it generated. On land, the Argentine army crossed the River Plate and established its headquarters near the Uruguayan town of Durazno. General Carlos María de Alvear invaded a series of skirmishes followed.
Pedro I of Brazil planned a counteroffensive by late 1826, managed to gather a small army composed of Southern Brazil volunteers and European mercenaries. The recruiting effort was hampered by local rebellions throughout Brazil, which forced the Emperor to relinquish direct command of his Army, return to Rio de Janeiro and bestow command of the troops on Felisberto Caldeira Brant, Marquis of Barbacena; the Brazilian counteroffensive was stopped at the inconclusive Battle of Ituzaingó. While Brazilian troops were prevented from marching on to Buenos Aires, Argentine troops no longer managed to operate in Brazilian territory. Ituzaingó was the only battle of some magnitude in the whole war. A series of smaller clashes ensued, including the Battle of Sarandí, the naval Battles of Juncal and Monte Santiago. Scarcity of volunteers hampered the Brazilian response, by 1828 the war effort had become burdensome and unpopular in Brazil; that year, Rivera reconquered the territory of the former Eastern Jesuit Missions.
Battle of Sarandí: October 12, 1825 Battle of Ituzaingó: February 20, 1827 Battle of Juncal: February 8–9, 1827 Battle of Monte Santiago: April 7–8, 1827 The stalemate in the Cisplatine War was caused by the inability of the Argentine and Uruguayan land forces to capture major cities in Uruguay and Brazil, the severe economic consequences imposed by the Brazilian blockade of Buenos Aires, the lack of manpower for a full-scale Brazilian la
Buenos Aires Province
Buenos Aires is the largest and most populous Argentinian province. It takes the name from the city of Buenos Aires, which used to be part of the province and the provincial capital until it was federalized in 1880. Since in spite of bearing the same name, the province does not include the national capital city proper, though it does include all other localities of the Greater Buenos Aires metropolitan area surrounding it; the current capital of the province is the city of La Plata, founded in 1882. The province is the only within the whole Argentina to be divided into partidos and furtherly into localidades, borders the provinces of Entre Ríos to the northeast. Uruguay is just near the Atlantic Ocean to the east; the entire province is part of the Pampas geographical region. The province has a population of 39 % of Argentina's total population. Nearly 10 million people live in Greater Buenos Aires; the area of the province, 307,571 km2, makes it the largest in Argentina with around 11% of the country's total area.
The inhabitants of the province before the 16th century advent of Spanish colonisation were aboriginal peoples such as the Charrúas and the Querandíes. Their culture was lost over the next 350 years, they were subjected to Eurasian plagues from. The survivors joined other tribes or have been absorbed by Argentina's European ethnic majority. Pedro de Mendoza founded Santa María del Buen Ayre in 1536. Though the first contact with the aboriginals was peaceful, it soon became hostile; the city was evacuated in 1541. Juan de Garay re-founded the settlement in 1580 as Santísima Trinidad y Puerto Santa María de los Buenos Aires. Amidst ongoing conflict with the aboriginals, the cattle farms extended from Buenos Aires, whose port was always the centre of the economy of the territory. Following the creation of the Viceroyalty of the Río de la Plata at the end of the 18th century, the export of meat and their derivatives through the port of Buenos Aires was the basis of the economic development of the region.
Jesuits unsuccessfully tried to peacefully assimilate the aboriginals into the European culture brought by the Spanish conquistadores. A certain balance was found at the end of the 18th century, when the Salado River became the limit between both civilizations, despite frequent malones; the end to this situation came in 1879 with the Conquest of the Desert in which the aboriginals were completely exterminated. After the independence from Spain in 1816, the city and province of Buenos Aires became the focus of an intermittent Argentine Civil War with other provinces. A Federal Pact secured by Governor Juan Manuel de Rosas in 1831 led to the establishment of the Argentine Confederation and to his gaining the sum of public power, which provided a tenuous unity. Ongoing disputes regarding the influence of Buenos Aires, between Federalists and Unitarians, over the Port of Buenos Aires fueled periodic hostilities; the province was declared independent on September 1852, as the State of Buenos Aires.
Concessions gained in the 1859 Pact of San José de Flores and a victory at the Battle of Pavón led to its reincorporation into the Argentine Republic on December 17, 1861. Intermittent conflicts with the nation did not cease until 1880, when the city of Buenos Aires was formally federalized and, administratively separated from the province. La Plata was founded in 1882 by Governor Dardo Rocha for the purpose of becoming the provincial capital; the equivalent of a billion dollars of British investment and pro-development and immigration policies pursued at the national level subsequently spurred dramatic economic growth. Driven by European immigration and improved health, the province's population, like Argentina's, nearly doubled to one million by 1895 and doubled again by 1914. Rail lines connected nearly every town and hamlet in the province by 1914; this era of accelerated development was cut short by the Wall Street Crash of 1929, which caused a sharp drop in commodity prices and led to a halt in the flow of investment funds between nations.
The new Concordance and Perón governments funded ambitious lending and public works programs, visible in Buenos Aires Province through the panoply of levees, power plants, water works, paved roads, municipal buildings, schools and massive regional hospitals. The province's population, after 1930, began to grow disproportionately in the suburban areas of Buenos Aires; these suburbs had grown to include 4 million out of the province's total 7 million people in 1960. Much of the area these new suburbs were developed on consisted of wetlands and were prone to flooding. To address this, Governor Oscar Alende initiated the province's most important flood-control project to date, the Roggero Reservoir. Completed a decade in 1971, the reservoir and associated electric and water-treatment facilities encouraged still more, more orderly, development of the Greater Buenos Aires region, which today includes around 10 million people, it did not address worsening pollution resulting from the area's industrial growth, which had made itself evident since aroun