The Irish famine pushed many to emigrate to other countries.

Evidence

Famine drove at least a million Irishmen to the United States and elsewhere. — Winston Churchill, A History of the English-Speaking…, 1781

Categorization

• corroborated: 2 independent passages support this claim — Winston Churchill, A History of the English-Speaking…, 1781
• XREF: connects to: Over 400,000 Irish immigrants formed the base of England’s industrial labor force.; The Potato Famine drove mass emigration and extreme Irish nationalism.; The 1927 flood displaced half a million people and forced enduring migration — Anna Merlan, Republic of Lies, 135 (+1 more)