Wikipedia: According to the Bible, God created the Earth in six days, and rested on the seventh day, the Sabbath, i.e. Saturday. This made Sunday the first day of the week, while Saturdays were sanctified for celebration and rest. After the week was adopted in Early Christian Europe, Sunday remained the first day of the week, but also gradually displaced Saturday as the day of celebration and rest, being considered the Lord's Day. In many places, however, Sunday eventually came to be viewed...