From Wikipedia:
It is increasingly being called Mother's Day
As I explained elsewhere I have for the past few years allowed the calendar generator to include holidays from Europe, Canada, U.S., and U.K. Afterwards I would go through to manually remove duplicates and unnecessary items. In the past they have always called the holiday "Mothering Sunday". As the Wikipedia has noted it is increasingly referred to as Mother's Day. It slipped past me but I feel little regret as I'm certain most mothers deserve at least two days in a year.
