The Great Famine (an Gorta Mór) or the Great Hunger (1845 – 1852) began as a natural catastrophe of extraordinary magnitude, but its effects on Ireland were severely worsened by the actions and inactions of the ruling British government. Ultimately, the root cause of the famine was perceived to be British policy, which reduced the amount of land available for feeding the Irish, and therefore stimulated the demand for political autonomy. This period of mass starvation and disease resulted in the death of over a million men, women and children with another two million emigrating. It is acknowledged that the Irish famine was proportionally more destructive than most of the famines of modern times, killing nearly one-eighth of the entire population.
The introduction of the potato in the second half of the 16th century heavily influenced Ireland's cuisine thereafter and its importance as an Irish staple is still evident today. Chips seemed to be served with every meal and if not, there is likely to be potato in some form or another. However in 1846 and successive years, blight destroyed the potato crop that had provided approximately 60 per cent of the nation's food needs. The fact that only four types of potato were brought from the Americas contributed to the famine, because, a lack of genetic diversity exasperated the situation resulted in potentially greater devastating consequences from the blight.