Vampire folklore by region

Legends of vampires have existed for Millennia; cultures such as the Mesopotamians, Hebrews, Ancient Greeks, and Romans had tales of demonic entities and blood-drinking spirits which are considered precursors to modern vampires. Despite the occurrence of vampire-like creatures in these ancient civilizations, the folklore for the entity we know today as the vampire originates almost exclusively from early 18th-century Southeastern Europe, particularly Transylvania as verbal traditions of many ethnic groups of the region were recorded and published. In most cases, vampires are revenants of evil beings, suicide victims, or witches, but can also be created by a malevolent spirit possessing a corpse or by being bitten by a vampire itself. Belief in such legends became so rife that in some areas it caused mass hysteria and even public executions of people believed to be vampires.

Ancient Beliefs
Tales of the undead consuming the blood or flesh of living beings have been found in nearly every culture around the world for many centuries. Today we know these entities predominantly as vampires, but in ancient times, the term vampire did not exist; blood drinking and similar activities were attributed to demons or spirits who would eat flesh and drink blood; even the devil was considered synonymous with the vampire. Almost every nation has associated blood drinking with some kind of revenant or demon, from the ghouls of Arabia to the goddess Sekhmet of Egypt. Indeed, some of these legends could have given rise to the European folklore, though they are not strictly considered vampires by historians when using today's definitions.

Mesopotamia
Mesopotamia was an area rampant with superstition of blood-drinking demons. The Persians were one of the first civilizations thought to have tales of blood-drinking demons: creatures attempting to drink blood from men were depicted on excavated pottery shards. Ancient Babylonia had tales of the mythical Lilitu, synonymous with and giving rise to Lilith (Hebrew לילית) and her daughters the Lilu from Hebrew demonology. Lilith was considered a demon and was often depicted as subsisting on the blood of babies. However, the Jewish counterparts were said to feast on both men and women, as well as newborns. The legend of Lilith was originally included in some traditional Jewish texts: according to the medieval folk traditions, she was considered to be Adam's first wife before Eve. In these texts, Lilith left Adam to become the queen of the demons (she actually refused to be Adam's subordinate and thus was banished from Eden by God himself) and, much like the Greek striges, would prey on young babies and their mothers at night, as well as males. Because Hebrew law absolutely forbade the eating of human flesh or the drinking of any type of blood, Lilith's blood drinking was described as exceptionally evil. To ward off attacks from Lilith, parents used to hang amulets from their child's cradle.

An alternate version states the legend of Lilith/Lilitu (and a type of spirit of the same name) originally arose from Sumer, where she was described as an infertile "beautiful maiden" and was believed to be a harlot and vampire who, after having chosen a lover, would never let him go. Lilitu (or the Lilitu spirits) was considered to be an anthropomorphic bird-footed, wind or night demon and was often described as a sexual predator who subsisted on the blood of babies and their mothers. Other Mesopotamian demons such as the Babylonian goddess Lamashtu, (Sumer's Dimme) and Gallu of the Uttuke group are mentioned as having vampiric natures.

Lamashtu is a historically older image that left a mark on the figure of Lilith. Many incantations invoke her as a malicious "Daughter of Heaven" or of Anu, and she is often depicted as a terrifying blood-sucking creature with a lion's head and the body of a donkey. Akin to Lilitu, Lamashtu primarily preyed on newborns and their mothers. She was said to watch pregnant women vigilantly, particularly when they went into labor. Afterwards, she would snatch the newborn from the mother to drink its blood and eat its flesh. In the Labartu texts she is described; "Wherever she comes, wherever she appears, she brings evil and destruction. Men, beasts, trees, rivers, roads, buildings, she brings harm to them all. A flesh-eating, bloodsucking monster is she." Gallu was a demon closely associated with Lilith, though the word (like "Utukku") is also used as a general term for demons, and these are "evil Uttuke" or "evil Galli". One incantation tells of them as spirits that threaten every house, rage at people, eat their flesh, and as they let their blood flow like rain, they never stop drinking blood. Lamashtu, Lilitu, and Gallu are invoked in different amulet texts, with Gallu showing up in Graeco-Byzantine myth as Gello, Gylo, or Gyllo. There she appears as a child-stealing and child-killing female demon, in the manner of Lamia and Lilith.

Anicent Greece
Ancient Greek mythology contains several precursors to modern vampires, though none were considered undead; these included the Empusa, Lamia, and striges (the strix of Ancient Roman mythology). Over time the first two terms became general words to describe witches and demons respectively. Empusa was the daughter of the goddess Hecate and was described as a demonic, bronze-footed creature. She feasted on blood by transforming into a young woman and seduced men as they slept before drinking their blood. Lamia was the daughter of King Belus and a secret lover of Zeus. However Zeus' wife Hera discovered this infidelity and killed all Lamia's offspring; Lamia swore vengeance and preyed on young children in their beds at night, sucking their blood. Like Lamia, the striges, feasted on children, but also preyed on young men. They were described as having the bodies of crows or birds in general, and were later incorporated into Roman mythology as strix, a kind of nocturnal bird that fed on human flesh and blood. The Romanian vampire breed named Strigoï has no direct relation to the Greek striges, but was derived from the Roman term strix, as is the name of the Albanian Shtriga and the Slavic Strzyga, though myths about these creatures are more similar to their Slavic equivalents. Greek vampiric entities are seen once again in Homer's epic Odyssey. In Homer's tale, the undead are too insubstantial to be heard by the living and cannot communicate with them without drinking blood first. In the epic, when Odysseus journeyed into Hades, he was made to sacrifice a black ram and a black ewe so that the shades there could drink its blood and communicate.