May 7 1978 was on a Sunday.
June 7, 1978 fell on a Wednesday.
July 7, 1978 fell on a Friday.
monday
7th December 1978, was a Thursday.
August 7, 1978, was a Monday.
Tuesday
7 May 1971 was a Friday.
7 May 1945 was a Monday.
May 7 1949 was on a Saturday.
May 7 1977 was on a Saturday.
7 May 1948 was a Friday.
7 May 1964 was a Thursday.