100 years ago today the town of Balbriggan, in North County Dublin, was burnt in a vicious reprisal that would send shockwaves across the world and cause chaos in the British House of Commons.
The Burning of Balbriggan happened at a time when the war in Ireland was spiraling out of control, but few could predict its impact on domestic British politics, or on the hearts of Irish America.
Gavan is joined by Donal Fallon for another episode of Hidden Histories.