Mother's Day was on May 13th of 1979. Mother's Day is always on the second Sunday of May.
Wednesday
Tuesday
May 7, 1991 was a Tuesday.
The given date was a Friday.
Mother's Day 1979 was celebrated on Sunday May 13 (not UK).
May 9th, 1979 fell on a Wednesday.
May 18th, 1979 was a Friday.
16 May 1979 was on a Wednesday.
May 24, 1979 fell on a Thursday.
May 7, 1979 fell on a Monday.
May 2, 1979 fell on a Wednesday.