When we talk about “Halloween”, I will think once special day about death, ghost, harvest and season changing that in my opinion, then let to see the Halloween story as follow:

Halloween is a holiday celebrated on October 31. It has roots in the Celtic festival of Samhain and the Christian holy day of All Saints’ Day. It is largely a secular celebration, but some Christians and pagans have expressed strong feelings about its religious overtones. Irish immigrants carried versions of the tradition to North America during Ireland's Great Famine of 1846.The day is often associated with the colors orange and black, and is strongly associated with symbols such as the jack-o'-lantern. Halloween activities include trick-or-treating, ghost tours, bonfires, costume parties, visiting haunted attractions, carving jack-o'-lanterns, reading scary stories, and watching horror movies.

History
The history of Halloween has evolved. The activity is popular in the United States, the United Kingdom, Ireland, Canada, and due to increased American cultural influence in recent years, imported through exposure to US television and other media, trick-or-treating has started to occur among children in many parts of Europe, and in the Saudi Aramco camps of Dhahran, Akaria compounds and Ras Tanura in Saudi Arabia. The most significant growth — and resistance is in the United Kingdom, where the police have threatened to prosecute parents who allow their children to carry out the "trick" element. In continental Europe, where the commerce-driven importation of Halloween is seen with more skepticism, numerous destructive or illegal "tricks" and police warnings have further raised suspicion about this game and Halloween in general.

In Ohio, Iowa, and Massachusetts, the night designated for Trick-or-treating is often referred to as Beggars Night.

Part of the history of Halloween is Halloween costumes. The practice of dressing up in costumes and begging door to door for treats on holidays goes back to the Middle Ages, and includes Christmas wassailing. Trick-or-treating resembles the late medieval practice of "souling," when poor folk would go door to door on Hallowmas (November 1), receiving food in return for prayers for the dead on All Souls Day (November 2). It originated in Ireland and Britain, although similar practices for the souls of the dead were found as far south as Italy. Shakespeare mentions the practice in his comedy The Two Gentlemen of Verona (1593), when Speed accuses his master of "puling [whimpering, whining], like a beggar at Hallowmas."

Yet there is no evidence that souling was ever practiced in America, and trick-or-treating may have developed in America independent of any Irish or British antecedent. There is little primary Halloween history documentation of masking or costuming on Halloween — in Ireland, the UK, or America — before 1900. The earliest known reference to ritual begging on Halloween in English speaking North America occurs in 1911, when a newspaper in Kingston, Ontario, near the border of upstate New York, reported that it was normal for the smaller children to go street guising (see below) on Halloween between 6 and 7 p.m., visiting shops and neighbors to be rewarded with nuts and candies for their rhymes and songs. Another isolated reference appears, place unknown, in 1915, with a third reference in Chicago in 1920. The thousands of Halloween postcards produced between the turn of the 20th century and the 1920s commonly show children but do not depict trick-or-treating. Ruth Edna Kelley, in her 1919 history of the holiday, The Book of Hallowe'en, makes no mention of such a custom in the chapter "Hallowe'en in America." It does not seem to have become a widespread practice until the 1930s, with the earliest known uses in print of the term "trick or treat" appearing in 1934, and the first use in a national publication occurring in 1939. Thus, although a quarter million Scots-Irish immigrated to America between 1717 and 1770, the Irish Potato Famine brought almost a million immigrants in 1845–1849, and British and Irish immigration to America peaked in the 1880s, ritualized begging on Halloween was virtually unknown in America until generations later.

Trick-or-treating spread from the western United States eastward, stalled by sugar rationing that began in April 1942 during World War II and did not end until June 1947.

Early national attention to trick-or-treating was given in October 1947 issues of the children's magazines Jack and Jill and Children's Activities, and by Halloween episodes of the network radio programs The Baby Snooks Show in 1946 and The Jack Benny Show and The Adventures of Ozzie and Harriet in 1948. The custom had become firmly established in popular culture by 1952, when Walt Disney portrayed it in the cartoon Trick or Treat, Ozzie and Harriet were besieged by trick-or-treaters on an episode of their television show, and UNICEF first conducted a national campaign for children to raise funds for the charity while trick-or-treating.

Trick-or-treating on the prairie. Although some popular histories of Halloween have characterized trick-or-treating as an adult invention to rechannel Halloween activities away from vandalism, nothing in the historical record supports this theory. To the contrary, adults, as reported in newspapers from the mid-1930s to the mid-1950s, typically saw it as a form of extortion, with reactions ranging from bemused indulgence to anger. Likewise, as portrayed on radio shows, children would have to explain what trick-or-treating was to puzzled adults, and not the other way around. Sometimes even the children protested: for Halloween 1948, members of the Madison Square Boys Club in New York City carried a parade banner that read "American Boys Don't Beg."

Custom
The custom of trick-or-treating is thought to have originated not with the Irish Celts, but with a ninth-century European custom called souling. On November 2, All Souls Day, early Christians would walk from village to village begging for "soul cakes," made out of square pieces of bread with currants. The more soul cakes the beggars would receive, the more prayers they would promise to say on behalf of the dead relatives of the donors. At the time, it was believed that the dead remained in limbo for a time after death, and that prayer, even by strangers, could expedite a soul's passage to heaven.

The Jack-o-lantern custom probably comes from Irish folklore. As the tale is told, a man named Jack, who was notorious as a drunkard and trickster, tricked Satan into climbing a tree. Jack then carved an image of a cross in the tree's trunk, trapping the devil up the tree. Jack made a deal with the devil that, if he would never tempt him again, he would promise to let him down the tree.

According to the folk tale, after Jack died, he was denied entrance to Heaven because of his evil ways, but he was also denied access to Hell because he had tricked the devil. Instead, the devil gave him a single ember to light his way through the frigid darkness. The ember was placed inside a hollowed-out turnip to keep it glowing longer.

The Irish used turnips as their "Jack's lanterns" originally. But when the immigrants came to America, they found that pumpkins were far more plentiful than turnips. So the Jack-O-Lantern in America was a hollowed-out pumpkin, lit with an ember.

So, although some cults may have adopted Halloween as their favorite "holiday," the day itself did not grow out of evil practices. It grew out of the rituals of Celts celebrating a new year, and out of Medieval prayer rituals of Europeans. And today, even many churches have Halloween parties or pumpkin carving events for the kids.

Festival
The festival of Samhain is a celebration of the end of the harvest season in Gaelic culture. Samhain was a time used by the ancient pagans to take stock of supplies and prepare for winter. The ancient Gaels believed that on October 31, the boundaries between the worlds of the living and the dead overlapped and the deceased would come back to life and cause havoc such as sickness or damaged crops.

The festival would frequently involve bonfires. It is believed that the fires attracted insects to the area which attracted bats to the area. These are additional attributes of the history of Halloween.

Wow!! Jack is clever but I don’t want to see him in Halloween day because I scared him take me out so, hope you happy in Halloween day.