Christmas Traditions The Origin of Christmas Since about 400 AD，Christmas Day has been celebrated on 25th December.This date was the old midwinter festival in preChristian times，around the time of the longest night and the shortest day.Christmas in the 21st century has many traditions：Christmas trees，cards and presents. Presents and shopping Shops can make about 60 per cent of their year's income in the three months before Christmas.So most shops get ready for it in October.The shopping centres are beautifully decorated and stay open late at night.The first time this happened