Have you heard of Samhain, a Celtic festival celebrated in Ireland and Scotland? Many of our Halloween activities come from Samhain celebrations. Samhain marked the end of the harvest season, but it was also a time when the border between this world and others was at its thinnest.
This TED talk/lesson discusses how the popular image of the vampire has evolved into what we know today. Take a look at both the science and the superstition. Click on Think to get a short quiz and on Dig Deeper for further resources.