In medieval Ireland, Samhain became the principal festival, celebrated with a great assembly at the royal court in Tara, lasting for three days. After being ritually started on the Hill of Tlachtga, a bonfire was set alight on the Hill of Tara, which served as a beacon, signaling to people gathered atop hills all across Ireland to light their ritual bonfires. The custom has survived to some extent, and recent years have seen a resurgence in participation in the festival.Samhain was identified in Celtic literature as the beginning of the Celtic year and its description as “Celtic New Year” was popularized in 18th century literature. From this usage in the Romanticist Celtic Revival, Samhain is still popularly regarded as the “Celtic New Year” in the contemporary Celtic cultures, both in the Six Celtic Nations and the diaspora. For instance, the contemporary calendars produced by the Celtic League begin and end at Samhain.The Samhain celebrations have survived in several guises as a festival dedicated to the harvest and the dead. In Ireland and Scotland, the Féile na Marbh, the ‘festival of the dead’ took place on Samhain.The night of Samhain, in Irish, Oíche Shamhna and Scots Gaelic, Oidhche Shamhna, is one of the principal festivals of the Celtic calendar, and falls on the October 31. It represents the final harvest. In modern Ireland and Scotland, the name by which Halloween is known in the Gaelic language is still Oíche/Oidhche Shamhna. It is still the custom in some areas to set a place for the dead at the Samhain feast, and to tell tales of the ancestors on that night.Traditionally, Samhain was time to take stock of the herds and grain supplies, and decide which animals would need to be slaughtered in order for the people and livestock to survive the winter. This custom is still observed by many who farm and raise livestock because it is when meat will keep since the freeze has come and also since summer grass is gone and free foraging is no longer possible.Bonfires played a large part in the festivities celebrated down through the last several centuries, and up through the present day in some rural areas of the Celtic nations and the diaspora. Villagers were said to have cast the bones of the slaughtered cattle upon the flames. In the pre-Christian Gaelic world, cattle were the primary unit of currency and the center of agricultural and pastoral life. Samhain was the traditional time for slaughter, for preparing stores of meat and grain to last through the coming winter. The word ‘bonfire’, or ‘bonefire’ is a direct translation of the Gaelic tine cnámh. With the bonfire ablaze, the villagers extinguished all other fires. Each family then solemnly lit its hearth from the common flame, thus bonding the families of the village together. Often two bonfires would be built side by side, and the people would walk between the fires as a ritual of purification. Sometimes the cattle and other livestock would be driven between the fires, as well.Divination is a common folkloric practice that has also survived in rural areas. The most common uses were to determine the identity of one’s future spouse, the location of one’s future home, and how many children a person might have. Seasonal foods such as apples and nuts were often employed in these rituals. Apples were peeled, the peel tossed over the shoulder, and its shape examined to see if it formed the first letter of the future spouse’s name. Nuts were roasted on the hearth and their movements interpreted – if the nuts stayed together, so would the couple. Egg whites were dropped in a glass of water, and the shapes foretold the number of future children. Children would also chase crows and divine some of these things from how many birds appeared or the direction the birds flew.The Ulster Cycle is peppered with references to Samhain. Many of the adventures and campaigns undertaken by the characters therein begin at the Samhain Night feast. One such tale is Echtra Nerai (‘The Adventure of Nera’) concerning one Nera from Connacht who undergoes a test of bravery put forth by King Ailill. The prize is the king’s own gold-hilted sword. The terms hold that a man must leave the warmth and safety of the hall and pass through the night to a gallows where two prisoners had been hanged the day before, tie a twig around one man’s ankle, and return. Others had been thwarted by the demons and spirits that harassed them as they attempted the task, quickly coming back to Ailill’s hall in shame. Nera goes on to complete the task and eventually infiltrates the sídhe where he remains trapped until next Samhain. Taking etymology into consideration, it is interesting to note that the word for summer expressed in the Echtra Nerai is samraid.The other cycles feature Samhain as well. The Cath Maige Tuireadh (Battle of Mag Tuired) takes place on Samhain. The deities Morrígan and Dagda meet and have sex before the battle against the Fomorians; in this way the Morrígan acts as a sovereignty figure and gives the victory to The Dagda’s people, the Tuatha Dé Danann.The tale The Boyhood Deeds of Fionn includes an important scene at Samhain. The young Fionn Mac Cumhail visits Tara where Aillen the Burner, one of the Tuatha Dé Danann, puts everyone to sleep at Samhain and burns the place. Through his ingenuity Fionn is able to stay awake and slays Aillen, and is given his rightful place as head of the fianna.Excerpted and Adapted from Wikipedia