Northern Ireland

The ruins of Dunluce Castle, which sit on the coastal cliffs of North Antrim in Northern Ireland. They are thought to have been the inspiration for CS Lewis’s castle Cair Paravel in ‘The Chronicles of Narnia’ (1950–56). (Photo by Andrea Ricordi/Contributor/Getty Images)

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The Norman invasion of Ireland took place during the second half of the 12th century. This military intervention had the backing of King Henry II of England and was authorised by Pope Adrian IV. Here you can see Henry II landing at Waterford in 1171. (Photo by The Print Collector/Getty Images)

The Anglo-Norman invasion of Ireland: 850 years on

Though green dominates the celebrations today, the colour blue was first associated with St Patrick. The earliest depictions of the saint show him in blue garments, as in this 13th century folio, La Vie des Sains. ( Image ©The British Library Board/Leemage / Bridgeman Images)

6 facts you might not know about the history of St Patrick’s Day

A memorial tomb to King Æthelstan, the first Saxon king of all England, in Malmesbury Abbey, Wiltshire. (Photo by Geography Photos/UIG via Getty Images)

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Illustration by Joey Guidone

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Ireland podcast

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A St Patrick's Day Parade in America, Union Square, 1870s, from a colour lithograph.

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British prime minister Tony Blair (right), US Senator George Mitchell (centre) and Irish prime minister Bertie Ahern smiling on 10 April 1998 after signing the Good Friday Agreement – an historic agreement for peace in Northern Ireland. (Photo by Dan Chung/AFP/Getty Images)

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Harland & Wolff shipworkers

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A silhouette of troops of the 1st Australian Division during the First World War.

First World War

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Trees and snow. Photo taken by British photographer Chloe Dewe Mathews as part of her series focussing on the locations at which individuals were shot during the First World War.

First World War

Shot at dawn: the First World War soldiers executed for desertion and cowardice

Author Linda Colley.

The Library Acts of union and disunion

"Britain’s handling of the Malayan Emergency has often been cited as a textbook example of how an army should win over the ‘hearts and minds’ of civilians," says Michael Burleigh. (Photo by Charles Hewitt/Picture Post/Getty Images)

The Library Britain’s brutal battles for hearts and minds