Unsurprisingly, Black Friday is a concept which started out in the USA. It was the name given to the day after the Thanksgiving holiday - which always falls on the 4th Thursday of November. With the enormously important and expensive Thanksgiving celebration at an end, Americans would start to prepare for the next big holiday: Christmas. So, traditionally, Black Friday was the day that Americans would start doing their Christmas shopping. Or, at least, they would start thinking about doing their Christmas shopping.