On a small piece of land , a farmer colud grow enough potatoes to feed his family.
A person could eat 8 to 10 pounds of potatoes a day, with some milk or cheese,and be very healthy.
Soon, potatoes became the main food in Ireland.
Then, in 1845, a disease killed all the potatoes in Ireland.
Two million people died of hunger.
Many Irish who did ont die came to the United States at this time.
Over a million Irish came to America; one of them was the great-grandfather of John F.Kennede.