The History of Argentinean Jewry
For those wishing to read about Argentina and it's Jewish community I strongly recommend Robert Weisbrot's "The Jews of Argentina from the Inquisition to Peron (1979) and Haim Avni's Argentina & the Jews: A History of Jewish Immigration (english translation by Gila Brand). The following article borrows from both as well as from the following sources:
Argentina has an overwhelming ethnic European population. An estimated 97% of the people are of Continental origin, principally Spanish and Italian but many can trace their roots to British, French, German, Irish and Jewish immigrants. While Spaniards were there right from the beginning, the real drive for this unique demography is the massive Immigration of late XIX and early XX Centuries, consequence of a personal decision by Argentinean President Nicolás Remigio Aurelio Avellaneda Silva (1837-1885) who signed on October 19, 1876 the Immigration and Colonization Act (Law N° 817) encouraging immigration and creating a special Department to facilitate and enforce it, as well as establishing a network of immigration agencies in European countries and appointing committees to provide guidance to the newly arrived. Immigration did not start immediately. In the four years following its enactment the Argentinean Government engage in The Conquest of the Desert - the local version of the North American Expansion to the Wild West and Indian Wars - and immense territories came under the rule of the Republic. At the same time Buenos Aires was appointed Federal Capital, putting an end to the political unrest. When Avellaneda's succesor, Julio Argentino Roca, took office on October 12, 1880, Argentina was unified, had huge extensions of virgin territory at it's disposal and was therefore ripe for an increase in population and colonization of it's Provinces.
The history of Jews in the Americas dates back to Christopher Columbus and his first cross-Atlantic voyage on August 3, 1492, when he left Spain and eventually "discovered" the New World. The day of his departure was the same day on which the Catholic Monarchs Isabella I of Castile and Ferdinand II of Aragon decreed that the Jews of Spain either had to convert to Catholicism, depart from the country, or face death for defiance of the Monarch. Seven Jews sailed with Columbus in this first voyage including Rodrigo de Triana, who was the first to sight land (Columbus later assumed credit for this), Maestre Bernal, who served as the expedition's physician, and Luis De Torres, the interpreter, who spoke Hebrew and Arabic, two languages they believed would be useful in the Orient - their intended destination. In the coming years, Jews settled in the new Spanish and Portuguese colonies in the Caribbean, where they believed that they would be safe from the Inquisition. Some took part in the conquest of the "New World," and Bernal Díaz del Castillo describes a number of executions of soldiers in Hernán Cortés's forces during the conquest of Mexico because they were Jews. Nevertheless, Jewish communities in the Caribbean, Central, and South America flourished, particularly in areas under Dutch and English control. By the sixteenth century, fully functioning Jewish communities had organized in Brazil, Suriname, Curaçao, Jamaica, and Barbados. In addition, there were unorganized communities of Jews in the Spanish and Portuguese territories, where the Inquisition was active, including Cuba and Mexico, however, these Jews generally concealed their identity from the authorities. Evidence of the presence of Jews in the Southern Parts of America can be found in recorded cases of inquisition prosecution dating from the seventeenth century from Peru - then the seat of Spanish Rule in the Sub Continent.
In 1736 a Viceroy
was appointed by the Spaniards in the Region of the La Plata River (today Argentina and Uruguay) and Buenos Aires became the political, economic, and cultural center of Argentina. Many European businesses established representations there and in many instances the representatives of those businesses were Jewish. Those merchants and businessmen, generally natives of France or England, constituted the first seed of the Jewish community of Argentina. In 1852, they established the Jewish Congregation of Buenos Aires in an attempt to preserve their religious identity. There is also evidence of a small Sephardic community in Buenos Aires by the end of the last century. An 1887 city census revealed the presence of 336 Jews in Buenos Aires, and it is estimated that there were about 1,500 Jews in the entire country.

The Immigration and Colonization legislation couldn't have came in a more convenient moment for European Jews. as 1881 was the year major pogroms started all over Eastern Europe and especially Imperial Russia. Most of the Jews dreamt to emigrate to the USA, were "gold could be found in the streets". An ideological minority hoped to settle in Zion-Palestine and rebuild the Jewish Homeland. Very few if any considered Argentina a prime candidate. South America was far away, with an almost non existent Jewish Community, nothing was known about its prevailing economic conditions, was an economically underdeveloped region, and on top of it there was a natural aversion countries linked to Spain by history, language, religion and tradition, which could - so they thought - maintain restrictive laws for Jews.
The event that changed all this happened one day in 1887 when leaders of Jewish communities in Podolia and Bessarabia met in Katowice (Silesia, Poland) to seek a solution to their problems. They decided emigration to Palestine was the solution and choose a delegate, Eliezer Hauffmann, to travel to Paris, meet the Baron de Rotschild and ask for his support. Two theories exist on what happened next. Some say the negotiations with the Baron failed while others believe Kauffman wasn't able to obtain an audition with the aristocrat at all. Afraid of going back empty handed and learning that there was an official bureau of information of the Argentinean Republic, Kauffman decided to meet J. B. Frank, the officer in charge, and learned that a gentleman named Rafael Hernández was interested in selling lands to European immigrants. The land was in Nueva Plata, Province of Buenos Aires, near the city of La Plata. A contract was signed there and then and thus the 820 people represented by Kauffman, comprising 130 families (a number equivalent to half the Jewish population of Argentina at that time!)  began their trip to Argentina on board of the SS WESER.
They arrived to Buenos Aires on August 14, 1889 and learned right away that the lands they had acquired were not available. Since their agreement the price of the land had more than doubled, making it "inconvenient" for unscrupulous Hernández to fulfill the contract. Rabbi Henry Joseph, the leader of Argentinean Jewry, tried to save the day and he arranged for the newcomers to meet Pedro Palacios, the Jewish Community attorney, who happened to be the owner of vast lands in the Province of Santa Fe, right where the new railway line to Tucumán was being built. Palacios aggreed to sell the WESER passengers some land he owned. By late August contracts were signed and the immigrants were on their way. To their dismay the travel was bad and the place they arrived to even worse. The families were lodged in freight cars parked in a shed along the railway line. They expected to be transferred to their fields, get farm animals and agricultural appliances and materials (as established in the contract) but none of these happened. Railway workers distributed food among the hungry children but soon enough a typhus epidemic enhaced by poor hygiene, took the lives of 64 of them. The national authorities, learning of the immigrants’ deplorable conditions, ordered an investigation by the General Immigration Commissioner.
Luckily for the newcomers Dr Wilhelm Loewenthal, a Rumanian doctor from the University of Berlin, specializing in bacteriology, who had been hired in Paris by the Argentine government for a scientific mission and paralelly asked by the A.I.U. to keep an eye on the Weser immigrants, traveled to Palacios Train Station where he was astonished by the miserable living conditions of the immigrants. Inspite of their ordeal and diffilcuties the settlers still hoped to become farmers. He reported to the Minister of Foreign Affairs, Estanislao Zeballos and simultaneously met Palacios requesting him to comply with his duties. Back in Paris, Loewenthal submitted a written project to Rabbi Zadoc Kahn for the agricultural colonization of Jewish families in Argentina by means of establishing a Colonizing Association and allocating each family a farm 50-100 hectars in size, at the cost of US$ 2000 per family.
If it wern't because of these travelers abandoned in Palacios Station it's very probable that Baron Hirsch would neither have thought of sending more Jews to Argentina,  nor created the JCA. But as a result of the ordeal the 1891 Baron Hirsch Plan was born. In it's first 5 years some 10,000 immigrants arrived to Argentina, 68% of them (6,757 residents from983 families) staying in the Colonies and the rest scattered through out the country or immigrating to the USA, Uruguay and Chile. Baron Hirsch died in 1896 and the program passed on to the hands of administrators that didn't have the passion and the push but continued his work bringing colonists to Argentina up until the eve of the Second World War. 
The Jewish colonies became known in distant Europe and Asia and many Jews decided to immigrate to Argentina - 200,000 to 250,000 Jews in the 50 years between 1888 and 1938.It is estimated that in 1909 there were approximately 70,000 Jews in Argentina, one third living in Buenos Aires, 25% in the central provinces (Santa Fe, Entre Rios, Cordoba, and La Pampa), 15% in the colonies of the JCA, and 30% in the rest of the country. Moises Ville had been the first but soon enough 15 other Jewish agricultural settlements were established by the JCA in the various provinces of Argentina. Here is a list of these settlements, including the year of foundation and location:
    Colony Year
    Province
    Moises Ville
    1889
    Santa Fe
    Mauricio
    1892
    Buenos Aires
    Clara
    1892
    Entre Rios
    San Antonio
    1892
    Entre Rios
    Lucienville
    1894
    Entre Rios
    Montefiore
    1902
    Santa Fe
    Baron Hirsh
    1905
    Bs. As/La Pampa
    Lopez and Berro
    1907
    Entre Rios
    Santa Isabel
    1908
    Entre Rios
    Curbelo and Moss
    1908
    Entre Rios
    Narcisse Leven
    1909
    La Pampa
    Dora
    1911
    Santiago del Estero
    Paimar-Yatay
    1912
    Entre Rios
    Louis Oungre
    1925
    Entre Rios
    Avigdor
    1936
    Entre Rios
    Leonard Cohen
    1937
    Entre Rios
The Jewish Community began organizing itself very early. A Hevra Kadisha (Holy Society - the Jewish Community Organized Burial Service) was established in 1900 and the first Jewish cemetery of Buenos Aires was opened in 1910 in Liniers, a suburb of the big city. A Bikur Holim was created in 1900 to assist the sick and needy, leading to the establishment of a Jewish Hospital (Hospital Israelita) and simultenously a home for orphans and seniors was founded.
In the pre WWI years and up to the 1930's the majority of the Jews were Ashkenazi from Poland, Russia, Rumania and Austria-Hungary but there was also a large Sephardic Jewish influx from Syria, Turkey, and Morocco. These eventually established their own institutions and temples and constituted about 10% of the total Jewish population. The newcomers escaped War, Pogroms, poverty and persecution but arrived empty handed and didn't have the support of the JCA. Being poor and ignorant of the language and customs of the new country and having to confront the situation on their own the majotity of them prefered to settle in the big cities, particularly Buenos Aires.  These urban Jews started as low-wage workers, peddlers, small merchants and artisans, living in small, overcrowded apartments. In time they advanced socially and economically to become merchants, store owners, and professionals, and later businessmen, industrialists, and distinguished scholars, leaving their mark in almost every aspect of Argentine society. Buenos Aires and its surroundings became the principal center of Jewish life in Argentina. By 1934, more than half of the estimated 218,000 Jews of Argentina lived there. Within the city, two districts, Once and Villa Crespo, stood out due to their high concentration of Jewish residents. Thirty percent of the Jewish population lived in the provinces, among the cities with the largest communities were Santa Fe, Rosario, Parana and Cordoba.
The thirties were a dark page in  Argentina's Jewish Immigration History. Inspite of the urgent need for shelter for the Jews fleeing from Germany, escaping the Nazi regime, the Government of Argentina imposed restrictions and raised obstacles to the immigration of the German Jews. Many entered the country without proper documentation, illegaly. A very few were assisted by the JCA and settled in the colony Avigdor in 1936. Others settled in existing colonies but the majority prweferred the big cities. Despite the fact that many of them had professional or craft skills, they could not immediately be absorbed by the economy of Argentina, and had to earn a living in low-wage, low level positions, much like their East European predecessors. Within a few decades they were able to improve their socio-economic position to become part of the elite of the Jewish community. The German Jews created their own institutions and, for some time, were isolated from the mainstream of the community.
One of the most important institutions of the Jewish community of Argentina was established in this period: the DAIA (Delegacion de Asociaciones Israelitas Argentinas). created in 1935 to protest the rise of Nazism in Germany and later becaming the political arm of the community. In the 1930s and 40s Argentina's manufacturing sector grew in numbers but maintained its earlier composition of a few large companies and many smaller firms. Manufacturing was still a foreigners occupation: in 1939 half the the owners and workers of small manufacturing plants were foreigners, many of them newly arrived Jewish refugees from Central Europe.
The immigration of Jews essentially stopped after World War II. In the early 50s Jewish immigration began to wane, while at the same time the country established ties with the state of Israel. The Jewish population of Argentina peaked around 1960, when it reached approximately 310,000, and then started to decrease, due to assimilation, emigration to Israel, and emigration to other countries because of economic or political reasons. In 1982, 233,000 Jews were believed to live in Argentina. n the 1990s, the Jewish community was the subject of two major terrorist attacks, both of which remain unsolved: the Israeli Embassy was bombed in March 1992, killing 32 people, and in July 1994 the Jewish community center (AMIA) in Buenos Aires was bombed as well, killing 85 people and wounding over 200.
During the economic crisis of 1999–2002, more than 10,000 Argentine Jews made aliyah to Israel.

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