paragraph_text: In 1845, Ireland was hit by a potato blight. In the next four years over a million Irish people died and another million emigrated in what became known as the Great Famine. In Ireland, Victoria was labelled "The Famine Queen". She personally donated £2,000 to famine relief, more than any other individual donor, and also supported the Maynooth Grant to a Roman Catholic seminary in Ireland, despite Protestant opposition. The story that she donated only £5 in aid to the Irish, and on the same day gave the same amount to Battersea Dogs Home, was a myth generated towards the end of the 19th century.

paragraph_text: During periods of unemployment, there has been a long pattern of emigration from the island since the post-Napoleonic period. The majority of "Saints" emigrated to the UK, South Africa and in the early years, Australia. The population has steadily declined since the late 1980s and has dropped from 5,157 at the 1998 census to 4,255 in 2008. In the past emigration was characterised by young unaccompanied persons leaving to work on long-term contracts on Ascension and the Falkland Islands, but since "Saints" were re-awarded UK citizenship in 2002, emigration to the UK by a wider range of wage-earners has accelerated due to the prospect of higher wages and better progression prospects.

paragraph_text: Around 1300, centuries of prosperity and growth in Europe came to a halt. A series of famines and plagues, including the Great Famine of 1315–1317 and the Black Death, reduced the population to around half of what it was before the calamities. Along with depopulation came social unrest and endemic warfare. France and England experienced serious peasant uprisings, such as the Jacquerie and the Peasants' Revolt, as well as over a century of intermittent conflict in the Hundred Years' War. To add to the many problems of the period, the unity of the Catholic Church was shattered by the Western Schism. Collectively these events are sometimes called the Crisis of the Late Middle Ages.

paragraph_text: The Great Irish Famine brought a large influx of Irish immigrants. Over 200,000 were living in New York by 1860, upwards of a quarter of the city's population. There was also extensive immigration from the German provinces, where revolutions had disrupted societies, and Germans comprised another 25% of New York's population by 1860.

paragraph_text: In other events of the nineteenth century, The Times opposed the repeal of the Corn Laws until the number of demonstrations convinced the editorial board otherwise, and only reluctantly supported aid to victims of the Irish Potato Famine. It enthusiastically supported the Great Reform Bill of 1832, which reduced corruption and increased the electorate from 400,000 people to 800,000 people (still a small minority of the population). During the American Civil War, The Times represented the view of the wealthy classes, favouring the secessionists, but it was not a supporter of slavery.

paragraph_text: The plague disease, caused by Yersinia pestis, is enzootic (commonly present) in populations of fleas carried by ground rodents, including marmots, in various areas including Central Asia, Kurdistan, Western Asia, Northern India and Uganda. Nestorian graves dating to 1338–39 near Lake Issyk Kul in Kyrgyzstan have inscriptions referring to plague and are thought by many epidemiologists to mark the outbreak of the epidemic, from which it could easily have spread to China and India. In October 2010, medical geneticists suggested that all three of the great waves of the plague originated in China. In China, the 13th century Mongol conquest caused a decline in farming and trading. However, economic recovery had been observed at the beginning of the 14th century. In the 1330s a large number of natural disasters and plagues led to widespread famine, starting in 1331, with a deadly plague arriving soon after. Epidemics that may have included plague killed an estimated 25 million Chinese and other Asians during the 15 years before it reached Constantinople in 1347.

paragraph_text: Long a major population center and site of worldwide automobile manufacturing, Detroit has suffered a long economic decline produced by numerous factors. Like many industrial American cities, Detroit reached its population peak in the 1950 census. The peak population was 1.8 million people. Following suburbanization, industrial restructuring, and loss of jobs (as described above), by the 2010 census, the city had less than 40 percent of that number, with just over 700,000 residents. The city has declined in population in each census since 1950.

paragraph_text: Around 1300–1350 the Medieval Warm Period gave way to the Little Ice Age. The colder climate resulted in agricultural crises, the first of which is known as the Great Famine of 1315-1317. The demographic consequences of this famine, however, were not as severe as the plagues that occurred later in the century, particularly the Black Death. Estimates of the death rate caused by this epidemic range from one third to as much as sixty percent. By around 1420, the accumulated effect of recurring plagues and famines had reduced the population of Europe to perhaps no more than a third of what it was a century earlier. The effects of natural disasters were exacerbated by armed conflicts; this was particularly the case in France during the Hundred Years' War.

paragraph_text: Killawalla or Killavally (Irish "Coill an Bhaile": Wood of the Homestead) is a village located in County Mayo, Ireland, 7 miles (10 km) from Westport on the R330 road to Ballinrobe. Saint Patrick is alleged to have passed this way en route to Croagh Patrick, and accordingly the local Catholic church is named after him. The village also contains a primary school and MacEvilly's pub established in 1968. The village post office closed in 2017. Killawalla is part of the parish of Carnacon and Ballintubber. Research carried out by NUI Maynooth showed Killawalla to have sustained the biggest population loss of any village in Ireland during the Great Famine. Between 1841 and 1851 the village lost two thirds of its population.

paragraph_text: Listen is an album by Irish folk singer Christy Moore, released in Ireland on 17 April 2009 by Columbia Records. Recorded with long-time accompanist Declan Sinnott, it is his first studio album since 2005's "Burning Times". The album debuted at number one on the Irish Albums Chart.

paragraph_text: Several plants native to the Americas have spread around the world, including potato, maize, tomato, and tobacco. Before 1500, potatoes were not grown outside of South America. By the 1840s, Ireland was so dependent on the potato that the proximate cause of the Great Famine was a potato disease. Potatoes eventually became an important staple of the diet in much of Europe, contributing to about 25% of the population growth in Afro - Eurasia between 1700 and 1900. Many European rulers, including Frederick the Great of Prussia and Catherine the Great of Russia, encouraged the cultivation of the potato.

paragraph_text: During the British Raj, famines in India, often attributed to failed government policies, were some of the worst ever recorded, including the Great Famine of 1876–78 in which 6.1 million to 10.3 million people died and the Indian famine of 1899–1900 in which 1.25 to 10 million people died. The Third Plague Pandemic in the mid-19th century killed 10 million people in India. Despite persistent diseases and famines, the population of the Indian subcontinent, which stood at about 125 million in 1750, had reached 389 million by 1941.

paragraph_text: The removal of Hungary's border fence with Austria occurred in 1989 during the collapse of communism in Hungary, which was part of a broad wave of revolutions in various communist countries of Central and Eastern Europe. The dismantling of the electric fence along Hungary's 240 kilometres (149 mi) long border with Austria was the first fissure in the ``Iron Curtain ''that had divided Europe for more than 40 years, since the end of World War II, and caused a chain reaction in East Germany that ultimately resulted in the demise of the Berlin Wall.

paragraph_text: The series, set in the fictional Yorkshire country estate of Downton Abbey between 1912 and 1926, depicts the lives of the aristocratic Crawley family and their domestic servants in the post-Edwardian era -- with the great events in history having an effect on their lives and on the British social hierarchy. Events depicted throughout the series include news of the sinking of the RMS Titanic in the first series; the outbreak of the First World War, the Spanish influenza pandemic, and the Marconi scandal in the second series; the Irish War of Independence leading to the formation of the Irish Free State in the third series; the Teapot Dome scandal in the fourth series; and the British general election of 1923, the Jallianwala Bagh massacre, and the Beer Hall Putsch in the fifth series. The sixth and final series introduces the rise of the working class during the interwar period and hints towards the eventual decline of the British aristocracy.

paragraph_text: The Iron Behind the Velvet is an album recorded by Christy Moore in 1978, after the first breakup of Planxty. It was produced jointly by Brian Masterson and Moore, and recorded and mixed at Lombard and Keystone Studios, Dublin.

paragraph_text: Iron Post is a census-designated place (CDP) in Mayes County, Oklahoma, United States. The population was 117 at the 2000 census, but had declined to 92 in 2010, a loss of more than 21 percent.

paragraph_text: "European Son" is a song written and performed by the American experimental rock band The Velvet Underground. It appears as the final track on their 1967 debut album "The Velvet Underground & Nico". It is also the album's longest track at more than seven and a half minutes.

paragraph_text: The population of England rose rapidly during the 19th and 20th centuries whereas the populations of Scotland and Wales have shown little increase during the 20th century, with the population of Scotland remaining unchanged since 1951. Ireland for most of its history comprised a population proportionate to its land area (about one third of the total population). However, since the Great Irish Famine, the population of Ireland has fallen to less than one tenth of the population of the British Isles. The famine, which caused a century-long population decline, drastically reduced the Irish population and permanently altered the demographic make-up of the British Isles. On a global scale, this disaster led to the creation of an Irish diaspora that numbers fifteen times the current population of the island.

paragraph_text: World War II was the deadliest military conflict in history in absolute terms of total casualties. Over 60 million people were killed, which was about 3% of the 1940 world population (est. 2.3 billion). The tables below give a detailed country - by - country count of human losses. World War II fatality statistics vary, with estimates of total deaths ranging from 50 million to more than 80 million. The higher figure of over 80 million includes deaths from war - related disease and famine. Civilians killed totalled 50 to 55 million, including 19 to 28 million from war - related disease and famine. Military deaths from all causes totalled 21 to 25 million, including deaths in captivity of about 5 million prisoners of war.

paragraph_text: The first years of the 14th century were marked by famines, culminating in the Great Famine of 1315–17. The causes of the Great Famine included the slow transition from the Medieval Warm Period to the Little Ice Age, which left the population vulnerable when bad weather caused crop failures. The years 1313–14 and 1317–21 were excessively rainy throughout Europe, resulting in widespread crop failures. The climate change—which resulted in a declining average annual temperature for Europe during the 14th century—was accompanied by an economic downturn.

Question: How long did the Great Irish Famine cause a population decline in the country of citizenship of The Iron Behind the Velvet's performer?
Answer: century-long population decline