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: -The crop failures were caused by late blight, a disease that destroys both the leaves and the edible roots, or tubers, of the potato plant. The causative agent of late blight is the water mold Phytophthora infestans.

Detailed explanation-3: -Before it ended in 1852, the Potato Famine resulted in the death of roughly one million Irish from starvation and related causes, with at least another million forced to leave their homeland as refugees.

Detailed explanation-4: -When the blight returned in 1846 with much more severe effects on the potato crop, this created an unparalleled food crisis that lasted four years and drove Ireland into a nightmare of hunger and disease. It decimated Ireland’s population, which stood at about 8.5 million on the eve of the Famine.