Saturday.
That date can be interpreted in two ways. 4 November 1970 was a Wednesday. April 11th 1970 was a Saturday.
4 October 1970 was a Sunday.
July 4, 1970 was a Saturday.
March 4 1970 was a Wednesday.
September 4, 1970 was a Friday.
4-6-2001 was in the first week of April. The day was Friday, April 6th.
That question can be interpreted two ways. April 2nd 1970 fell on a Thursday. The 4th of February 1970 was a Wednesday.
Sunday
April 4 1985 was on a Thursday.
4 April 1995 was a Tuesday.
4 April 1964 was a Saturday.
April 4 1950 was on a Tuesday.