Easter sunday.The key day in the Christian calender. On the Friday before his death Jesus had shared a supper with his followers urging them to eat his body and drink his blood. He is later crucified on a cross to save the lives or souls of the rest of humanity. This vestige of cannibalism, the weird fetichisation of suffering, human sacrifice and the bizarre idea that one man’s death could stand in for the salvation of millions started to gain momentum through the political act of Emperor Constantine when he made Christianity the official religion of the Roman Empire. But how did this barbaric assemblage of superstition and horrific atavism gain traction and take over the world? And why do people who normally wouldn’t say boo to a goose remain in its thrall?