From Wikipedia, the free encyclopedia.
In the popular rhyme, "Sunday's Child is fair and wise, and good and gay".
In ancient Jewish tradition Saturday is the sabbath. Many languages lack separate words for "Saturday" and "sabbath". Eastern Orthodox churches distinguish between the sabbath (Saturday) and the Lord's day (Sunday). Roman Catholics put so little emphasis on that distinction that many among them follow -- at least in colloquial language -- the Protestant practice of calling Sunday the sabbath.