Apples appear in many religious traditions, often as a mystical or forbidden fruit. One of the problems identifying apples in religion, mythology and folktales is that as late as the 17th century, the word "apple" was used as a generic term for all (foreign) fruit other than berries, but including nuts. This term may even have extended to plant galls, as they were thought to be of plant origin (see oak apple). For instance, when tomatoes were introduced into Europe, they were called "love apples". In one Old English work, cucumbers are called eorþæppla (lit. "earth-apples'), just as in French, Dutch, Hebrew, Persian and Swiss German, the words for potatoes mean "earth-apples" in English. In some languages, oranges are called "golden apples" or "Chinese apples". Datura is called 'thorn-apple".
Ethnobotanical and ethnomycological scholars such as R. Gordon Wasson, Carl Ruck and Clark Heinrich write that the mythological apple is a symbolic substitution for the entheogenic Amanita muscaria (or fly agaric) mushroom. Its association with knowledge is an allusion to the revelatory states described by some shamans and users of psychedelic mushrooms. At times artists would co-opt the apple, as well as other religious symbology, whether for ironic effect or as a stock element of symbolic vocabulary. Thus, secular art as well made use of the apple as symbol of love and sexuality. It is often an attribute associated with Venus who is shown holding it.
Mythology and religion 
Though the forbidden fruit in the Book of Genesis is not identified, popular Christian tradition holds that Adam and Eve ate an apple from the forbidden tree in the Garden of Eden. This may have been the result of Renaissance painters adding elements of Greek mythology into biblical scenes. The unnamed fruit of Eden thus became an apple under the influence of the story of the golden apples in the Garden of Hesperides. As a result, the apple became a symbol for knowledge, immortality, temptation, the fall of man and sin.
The Ancient Greek word "μήλον" (mēlon), now a loanword in English as melon or water melon did not mean, in Homer's time, apple, the pomaceous fruit, but sheep or goat. In Latin, the words for 'apple' ("mālum") and for 'evil' ("malum") are nearly identical. This may also have influenced the apple's becoming interpreted as the biblical 'forbidden fruit' in the commonly used Latin translation called "Vulgate". The larynx in the human throat has been called Adam's apple because of the folk tale that the bulge was caused by the forbidden fruit sticking in the throat of Adam. The apple as symbol of sexual seduction has sometimes been used to imply sexuality between men, possibly in an ironic vein. (See illustration above)
The notion of the apple as a symbol of sin is reflected in artistic renderings of the fall from Eden. When held in Adam's hand, the apple symbolises sin. But, when Christ is portrayed holding an apple, he represents the Second Adam who brings life. This difference reflects the evolution of the symbol in Christianity. In the Old Testament, the apple was significant of the fall of man; in the New Testament, it is an emblem of the redemption from that fall. The apple is represented in pictures of the Madonna and Infant Jesus as another sign of that redemption.
In some versions (such as Young's Literal Translation) of the Bible, the Hebrew word for mandrakes dudaim (Genesis 30:14) is translated as "love apples" (not to be confused with the New World tomatoes). There are several instances in the Old Testament where the apple is used in a more favourable light. The phrase 'the apple of your eye' comes from verses in Deuteronomy 32:10, Psalm 17:8 Proverbs 7:2, and Zechariah 2:8, implying an object or person who is greatly valued. In Proverbs 25:11, the verse states, "a word fitly spoken is like apples of gold in settings of silver". In the love songs of the Song of Solomon, the apple is used in a sensual context. In these latter instances, the apple is used as a symbol for beauty. The apple appears again in Joel 1:12 in a verse with a sense of profound loss when the apple tree withers.
Apple of Discord 
The Greek goddess of discord, Eris, became disgruntled after she was excluded from the wedding of Peleus and Thetis. In retaliation, she tossed a golden apple inscribed Kallisti ('For the most beautiful one'), into the wedding party. Three goddesses claimed the apple: Hera, Athena, and Aphrodite. Paris of Troy was appointed to select the recipient. After being bribed by both Hera and Athena, Aphrodite tempted him with the most beautiful woman in the world, Helen of Sparta. He awarded the apple to Aphrodite, thus indirectly causing the Trojan War.
Atalanta, also of Greek mythology, raced all her suitors in an attempt to avoid marriage. She outran all but Hippomenes (a.k.a. Melanion, a name possibly derived from melon the Greek word for both "apple" and fruit in general), who defeated her by cunning, not speed. Hippomenes knew that he could not win in a fair race, so he used three golden apples (gifts of Aphrodite, the goddess of love) to distract Atalanta. It took all three apples and all of his speed, but Hippomenes was finally successful, winning the race and Atalanta's hand.
In Norse mythology, the goddess Iðunn was the appointed keeper of golden apples that kept the Æsir young (or immortal) forever. Iðunn was abducted by Þjazi the giant, who used Loki to lure Iðunn and her apples out of Ásgarðr. The Æsir began to age without Iðunn's apples, so they coerced Loki into rescuing her. After borrowing Freyja's falcon skin, Loki liberated Iðunn from Þjazi by transforming her into a nut for the flight back. Þjazi gave chase in the form of an eagle, whereupon reaching Ásgarðr he was set aflame by a bonfire lit by the Æsir. With the return of Iðunn's apples, the Æsir regained their lost youth. Apple trees were the symbol of rebirth and beauty; the apple tree was sacred in Norse mythology.
Legends, folklore, and traditions 
- In North America an American Indian (Native American) is called an "apple" (a slur that stands for someone who is "red on the outside, white on the inside.") primarily by other American Indians to indicate someone who has lost touch with their cultural identity. First used in the 1980s.
- Apples feature frequently in fairy tales. A well-known example is "Snow White", in which a poisonous apple puts Snow White to sleep. In Le piacevoli notti (The Facetious Nights) of Giovanni Francesco Straparola, apples appear in four stories.
- Savior of the Apple Feast Day is celebrated on August 19 in Russia and Ukraine.
- A boatbuilder's superstition holds that it is unlucky to build a boat out of wood from an apple tree because this wood was previously used to manufacture coffins.
- Since 1990, Apple Day has been held across the UK and beyond, on October 21. This is a festival created by charity Common Ground to support localism: folksongs, biodiversity, buried orchards, children's games.
- Swiss folklore holds that William Tell shot an apple from his son's head with his crossbow.
- Irish folklore claims that if an apple is peeled into one continuous ribbon and thrown behind a woman's shoulder, it will land in the shape of the future husband's initials.
- Danish folklore says that apples wither around adulterers.
- A popular folk art involves a process to turn apples into wrinkly representations of human heads, usually be placed on dolls. In 1975, Vincent Price promoted a horror-themed kit that used a similar process to create faux shrunken heads, Shrunken Head Apple Sculpture, by Whiting Crafts.
- According to popular legend, upon witnessing an apple fall from its tree, Isaac Newton was inspired to conclude that a similar 'universal gravitation' attracted the moon toward the Earth. (This legend is discussed in more detail in the article on Isaac Newton).
- In Arthurian legend, the mythical isle of Avalon's name is believed to mean 'isle of apples'.
- In some places, apple bobbing is a traditional Halloween activity.
- In the 19th and early 20th century, and 21st century United States, Denmark and Sweden, a fresh, polished apple was a traditional children's gift for a teacher.
- The Apple Wassail is a traditional form of wassailing practiced in cider orchards of South West England during the winter. The ceremony is said to 'bless' the apple trees to produce a good crop in the forthcoming season.
- New York City is often called "The Big Apple." The term "The Big Apple" was coined by touring jazz musicians and horse racers of the 1920s who used the slang expression "apple" for any town or city. Therefore, to play New York City is to play the big time - The Big Apple.
- "Comparing apples and oranges" means to examine the similarities of things that are completely different; in German and Dutch the corresponding expression is "comparing apples with pears".
- "An apple a day keeps the doctor away" is a popular saying, the apple obviously symbolizing health, but also the advantages of eating fresh fruit.
- "Apples and Pears", Cockney rhyming slang for stairs
- Johnny Appleseed is said to have wandered the early United States planting apple trees.
- The apple is symbolic for the Trinity Mathematical Society.
- The design concept for the Design and Arts Arcadia of Myungseung, located in Chuncheon, Korea, is based on an apple with the top-third and the bottom-third sliced off while having the skin peeled around the circumference.'
- In Kazakhstan, the ex-capital city's name "Almaty" derives from the Kazakh word for 'apple' (алма), and thus is often translated as "full of apples;" alma is also 'apple' in other Turkic languages, as well as in Hungarian.
See also 
- "apple." Online Etymology Dictionary. Douglas Harper, Historian. 25 May. 2011. http://dictionary.reference.com/browse/apple
- Wasson, R. Gordon (1968). Soma: Divine Mushroom of Immortality. ISBN 0-15-683800-1.
- Ruck, Carl; Blaise Daniel Staples, Clark Heinrich (2001). The Apples of Apollo, Pagan and Christian Mysteries of the Eucharist. Durham: Carolina Academic Press. pp. 64–70. ISBN 0-89089-924-X.
- Heinrich, Clark (2002). Magic Mushrooms in Religion and Alchemy. Rochester: Park Street Press. pp. 64–70. ISBN 0-89281-997-9.
- Entry μῆλον at Liddell & Scott.
- Green, 2005, ISBN 0-304-36636-6, p. 29.
- Eyers, Jonathan (2011). Don't Shoot the Albatross!: Nautical Myths and Superstitions. A&C Black, London, UK. ISBN 978-1-4081-3131-2.
- Apple dolls, how to make apple dolls, purchase dolls, witches- instructions by Pamela Matson
- History and customs of Halloween