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.
Ancient India
In India, tales of vetalas, ghoul-like beings that inhabit corpses, are found in old Sanskrit folklore. Although most vetala legends have been compiled in the Baital Pachisi, a prominent story in the Kathasaritsagara tells of King Vikramāditya and his nightly quests to capture an elusive one. The vetala is described as an undead creature who, like the bat associated with modern day vampirism, hangs upside down on trees found on cremation grounds and cemeteries.Pishacha, the returned spirits of evil-doers or those who died insane, also bear vampiric attributes.
Ancient 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
