100 years on, the opening day of the battle as it unfolded
The centenary of the Battle of the Somme is being marked across Northern Ireland and in Thiepval in France, where thousands of Irishmen were killed.
A World War One veteran's vivid recollection of the sound of birdsong at the Somme.
A soldier from County Monaghan who was a forgotten hero of the Somme features in a BBC documentary.
A Donegal soldier produced a fascinating illustrated journal of his experiences of World War One.