31 August 1989 was a Thursday.
August 31st 1997 was a Sunday.
August 31st, 1963 fell on a Saturday.
Thursday
It was a Monday.
August 31st, 1955 was a Wednesday.
August, 31st, 1970, was a Monday,
The given date was a Friday.
August 31 1989 was a Thursday.
August 3rd 1989 was a Thursday.
August 20, 1989 fell on a Sunday.
August 21st, 1989 fell on a Monday.
August 18th, 1989 fell on a Friday.