USA HISTORY

Detailed explanation-1: -Between 1845 and 1855 more than 1.5 million adults and children left Ireland to seek refuge in America. Most were desperately poor, and many were suffering from starvation and disease. They left because disease had devastated Ireland’s potato crops, leaving millions without food.

Detailed explanation-2: -Suddenly, in the mid-1840s, the size and nature of Irish immigration changed drastically. The potato blight which destroyed the staple of the Irish diet produced famine. Hundreds of thousands of peasants were driven from their cottages and forced to emigrate–most often to North America.

Detailed explanation-3: -The potato late blight pathogen was introduced to Europe in the 1840s and caused the devastating loss of a staple crop, resulting in the Irish potato famine and subsequent diaspora.

Detailed explanation-4: -Ireland’s peasants were dependent on potatoes, and it was a major part of their diet. People were so dependent on potatoes that hundreds of thousands died of starvation in the mid-1840s when disease destroyed the potato crop. This tragedy is known as the Great Famine or the Irish Potato Famine.

Detailed explanation-5: -The Great Famine was caused by a failure of the potato crop, which many people relied on for most of their nutrition. A disease called late blight destroyed the leaves and edible roots of the potato plants in successive years from 1845 to 1849.