The Irish Potatoe Famine?

Potatoes were a staple for Irish peasants in the 1840s, but due to weather conditions the disease blight spread through the crops and destroyed them, which meant that entire villages had nothing to eat - any wheat they produced had to be sold because it didn't belong to them, it belonged to the English landlord (often absentee) who according to the law owned the land they lived on and farmed. While there were plenty of landlords who didn't care what happened to the Irish tenants as long as there were enough of them to work the land, there were several who tried to help the starving Irish families cope as best they could.