The Irish famine of 1879 was the last main Irishfamine. Unlike the earlier Great Famines of 1740–1741 and 1845–1852, the 1879 famine caused hunger rather than mass deaths, due to changes in the technology of food production, different structures of land-holding, remittances from the Irish diaspora, and in particular the prompt response of the British government, which contrasted with its laissez-faire response in 1845–1852. Another factor was the growth of small shops; one estimate has County Mayo shopkeepers extending some £200,000 in credit by August 1879, which had been steadily accumulated since the relatively bad harvest of 1877. Radical Irish Member of ParliamentCharles Stewart Parnell of the Home Rule League, Michael Davitt of the Irish National Land League and some Irish clergy, notably Bishop Logue of Raphoe, were actively involved in campaigning to put pressure on the British government and in the distribution of aid. Since the famine of the 1840s a railway system had been built, allowing food to be transported to the west of Ireland in days instead of weeks. Aid also arrived from the United States, with public support further aroused by journalists such as James Redpath at the New-York Tribune, who contributed vivid, moving reports of the misery in Ireland. The Department of the Navy dispatched USS Constellation in March 1880, with over 3,300 barrels of food aboard, along with clothing. Similarly, $200,000 was collected by the New York Herald by late February 1880. Unlike earlier famines, what is sometimes called the "mini-famine" of 1879 was not marked by many deaths, mainly increased hunger, and was largely focused in the west of Ireland, in the province of Connacht. By the end of 1879, newspapers were reporting severe distress amongst tenants in all parts of Ireland traditionally dependent on the potato, with only 1.4 tons produced per statute acre in County Mayo, the lowest in a decade and under half the previous year's harvest. Although it was of a far smaller scale to either of the two Great Famines, its appearance caused widespread panic among Irish people; many of the adults of the period had experienced the Great Famine of 1845–1852 as children and were terrified that their families faced a repeat of the widespread deaths, and in particular a repeat of "Black '47". An increase in emigration occurred, as did a move from foodless parts of rural Ireland into major cities and towns. However, the population moves proved temporary. With the re-appearance of the harvest in 1880, many of those who had fled to urban centres repopulated the areas they had left. Historians have noted the appearance of a religious revival during the famine months, most famously a Marian apparition at a church inKnock, County Mayo. Knock developed as Ireland's internationally known Marian shrine in subsequent decades as a result of the apparition. Seeing spirit beings at a time of extreme stress is typical of the "Third Man factor". Because of the short period it covered, and the low number of deaths compared to the earlier great famines, the 1879 famine is rarely remembered in Irish history, except as a footnote to the battle for the Three Fs being waged by Davitt and the Land League, and as a factor in the Land War of the late 1870s and early 1880s.