Today is Mothering Sunday and is celebrated in the United Kingdom & some other places as Mother's Day.
However the origin of Mothering Sunday isn't the same as Mother's Day.
Mothering Sunday is a day honouring mother churches, the church where one is baptised and becomes "a child of the church", celebrated since the Middle Ages in the United Kingdom, Ireland and some Commonwealth countries on the fourth Sunday in Lent. On Mothering Sunday, Christians have historically visited their mother church—the church in which they received the sacrament of baptism.
Mother's Day - an Astronomy Bouquet