History http://www.ensinger.co.uk/generic-imitrex-price-comparison.pdf fresh imitrex generic available determination Friday is believed to have been considered an unlucky day since the 14th-century publication of Chaucer’s ‘The Canterbury Tales’: “And on a Friday fell all this mischance.” In Christianity, Friday is also the day on which Jesus was crucified and Eve tempted Adam with the forbidden fruit.