It was a Saturday. You can figure out any day from the date if you know what the first day of the current year is and go backfactoring in leap years. You know that February 7th will always be the 38th day of the year, leap year or not.
May 7, 1970 fell on a Thursday.
March 7, 1970 fell on a Saturday.
7 February 1960 was a Sunday.
7 February 1946 was a Thursday.
7 February 1995 was on a Tuesday.
February 7 1967 was a Tuesday.
February 7, 1966 was a Monday.
February 7 2010 was a Sunday.
February 7, 1979 was a Wednesday.
February 7, 2006 was a Tuesday.
February 7, 1956 was a Tuesday.
February. 7, 1969 was a Friday.