Ireland suffered a massive potato famine. Many were very poor farmers and did not have anything else to eat. This was caused by a fungus called the potato blight. Thousands died by starvation and many more came to the USA.
Potatoes
potato
Poverty, war, and famine caused the cities to grow in population at the end of the nineteenth century.
Ireland.
You are referring to the potato famine that occurred in the 1840s.
to escape crop,failure,famine,and harsh governments.
The Irish Potato Famine
The main reason for the surge in Irish immigration to the U.S. in the mid-nineteenth century was the Great Famine in Ireland, which led to widespread poverty, famine, and lack of opportunities. Many Irish immigrants sought better economic prospects and a chance for a new life in America.
The cause was the Great Irish Potato Famine, a staple of the Irish diet.See related link below!
It was Ireland during the Great Famine, who's population drastically diminished from 8 million to roughly 3 million.
During the period from 1845 to 1852, Ireland suffered a famine due to the potato crop getting potato blight which destroyed the crop.
Irish potato famine