'the Great Calamity' definitions:
Definition of 'the Great Calamity'
From: WordNet
noun
A famine in Ireland resulting from a potato blight; between 1846 and 1851 a million people starved to death and 1.6 million emigrated (most to America) [syn: the Irish Famine, the Great Hunger, the Great Starvation, the Great Calamity]