This significance is mirrored in the places of worship and burial sites, from standing stones to pyramids and tombs, that Neolithic pagan cultures built throughout the world and many were designed in alignment with the sun at this sacred time of the year, when the sun was at its most powerful.
There are some 40,000 ancient megalithic and Neolithic sites across the British Isles and Ireland, from burial chambers, to stone circles and former dwellings of ancient societies.
Though, Bru Na Boinne and Newgrange are Ireland's most celebrated Neolithic sites, they are not the country's oldest.
In County Sligo there are the remnants of ancient burial sites predating Newgrange by 700 years.
The scene was preserved and assistance was sought from the office of the State Pathologist.