Where did the vampire myth actually start?

(**FYI: Dracula was not the first incident where Vampires came around**)
In the year 1047 the word "Upir" (which later becomes the word "vampire") Is first written in a document, referring to a Russian prince as "Upir Lichy" or Wicked Vampire.
But what about the name vampire? Where did that come from? That's harder to determine. We know that words like vampire were thick as bats in the Slavic languages of eastern Europe in the Middle Ages. Russian, Polish, Czech, Bulgarian, and Serbo-Croatian all had vampir, while Bulgarian also had vapir or vepir. There is also a variant beginning with u, as in Polish upiór, Russian upyr', Ukrainian uper or upyr. It is possible that this u-word came from Turkish uber, meaning "witch," and also possible that that u-word was the ancestor of vampire. And perhaps not. For our purposes, Serbo-Croatian is as good a candidate for the word's source as any other. Its word is vampir, the same form that made its way through such intermediate languages as Hungarian, German, and French to arrive in England by 1734. An English document of that date declares that "These Vampyres are supposed to be the Bodies of deceased Persons, animated by evil Spirits, which come out of the Graves, in the Night-time, suck the Blood of many of the Living, and thereby destroy them." That about sums it up. **taken from the website http://www.answers.com/topic/vampire **

One of the most famous eighteenth-century Vampire cases was one which involved a man named Arnold (Paole) Paul (or Arnont Paule in the original documents). This outbreak is only known from Flückinger's(an Austrian military doctor) report about the second epidemic and its prehistory. According to the account of the Medveđa locals as retold there, Arnold Paole was a hajduk who had moved to the village from the Turkish-controlled part of Serbia. He reportedly mentioned often that he had been plagued by a vampire at a location named Gossowa (perhaps Kosovo) but that he had cured himself by eating soil from the vampire's grave and smearing himself with his blood. About 1725, he broke his neck in a fall from a haywagon. Within 20 or 30 days after Paole's death, four persons complained that they had been plagued by him. These people died shortly after. Still ten days later villagers, advised by their hadnack (a military/administrative title) who had witnessed such events before, opened his grave. They saw that the corpse was undecomposed "and that fresh blood had flowed from his eyes, nose, mouth, and ears; that the shirt, the covering, and the coffin were completely bloody; that the old nails on his hands and feet, along with the skin, had fallen off, and that new ones had grown". Concluding that Paole was indeed a vampire, they drove a stake through his heart, to which he reacted by groaning and bleeding, and burned the body. They then disinterred Paole's four supposed victims and performed the same procedure, to prevent them from becoming vampires. **taken from http://en.wikipedia.org/wiki/Arnold_Paole#A_modern_scientific_explanation **
(There is also a modern scientific report as to why these things happened to Arnold's body on this website)