Lughnasadh - The Celtic Harvest Festival

The last Celtic Feast day of the year is Lughnasa, also spelled Lughnasadh, the harvest festival  observed August 1st and which is named after the Celtic God Lugh. God of the sun, light and harvests, Lugh was a great warrior. According to the Ulster Cycle he fathered the legendary Cú Chulainn and is linked to a number of sites in Ireland. Lugh spent part of his childhood in the Isle of Man where he was trained by Manannán mac Lir, said to be first ruler of the Isle of Man. Legend has it that Lir fostered and trained Lugh on Man before Lugh was sent back to Ireland. Lugh is always portrayed as youthful, handsome and athletic.

Traditionally celebrated on the first of August, Lughnasa is the fourth and last of the Feast days of the Celtic year. The three Celtic Feast days preceding Lughnasa include the Celtic New Year of Samhain (Halloween) on November 1st, Imbolg on February 1st which has become the Feast Day of St. Brigid but was originally the day of devotion to the Celtic Goddess of the same name and Beltane celebrated on 1st of May. Beltane is viewed by most scholars as being unique amongst the Celtic feast days in that Beltane observances have survived in essentially archaic form in to modern times due in part to its simplicity in that the celebrations historically included the lighting of bonfires.

Although today the least recognised of the four Celtic Feast Days, there are observances of Lughnasa surviving into modern times albeit a Google search for Lughnasa Festivals does not yield much.  There is a Lughnasa Festival in the open air museum of Craggaunowen in Ireland’s County Clare which features “...a unique glimpse of what living conditions were like for Celtic families...”, and includes re-enactments of adjudication through the Celtic Brehon Law. And then there is a Lughnasa Festival at Carrickfergus Castle in Ireland’s County Antrim. The description from the Carrickfergus Festival website gives credence to the voracious appetite of the early Christian church to co-opt and absorb Celtic feast days into Christian observances:

"Traditionally, Lughnasa was also characterised by dancing and the wearing of berries and fruits, but it's not all pagan ceremony and Celtic heritage, for in Medieval times the Christian church embraced Lughnasa wholeheartedly, making it the day on which the fields were blessed in order to ensure a fruitful year after the winter's retreat."

The connection between the four feast days and ancient Celtic religious practices is illustrated by the famed Coligny Calendar. The Coligny calendar records the important dates in the Celtic year. This artifact, unearthed in France in the late 1897, and which dates from about 200 AD, was created by the Celts of Roman Gaul. There is speculation that the calendar was created by Gaulish Druids to preserve the Celtic religious calendar at a time when Gaulish Celtic culture began to be submerged into the Roman way of life, three centuries after the rape and subjugation of Celtic Gaul by Gaius Julius Caesar.

https://www.transceltic.com/pan-celtic/celtic-harvest-festival-of-lughnasa