It fell on all days of the week, as follows:
Friday 4th of July 1989
Saturday 4th of July 1990
Sunday 4th of July 1991
Tuesday 4th of July 1992
Wednesday 4th of July 1993
Thursday 4th of July 1994
Friday 4th of July 1995
Sunday 4th of July 1996
Monday 4th of July 1997
Tuesday 4th of July 1998
Wednesday 4th of July 1999
Friday 4th of July 2000
Saturday 4th of July 2001
Sunday 4th of July 2002
Monday 4th of July 2003
Wednesday 4th of July 2004
Thursday 4th of July 2005
Friday 4th of July 2006
Saturday 4th of July 2007
Monday 4th of July 2008
Tuesday 4th of July 2009
Wednesday 4th of July 2010
Thursday 4th of July 2011
Saturday 4th of July 2012
Sunday 4th of July 2013
Monday 4th of July 2014
Tuesday 4th of July 2015
Thursday 4th of July 2016
Friday 4th of July 2017
July 5 1989 was a Wednesday.
That was a Thursday, according to the calendar on my phone.
Wednesday
July 29, 1989 was a Saturday.
July 15 1989 was a Saturday.
July 25 1989 was on a Tuesday.
9 July 1989 was a Sunday.
July 15 1989 was a Saturday.
Friday 7th july 1989.
July 10, 1989, was a Monday.
13 July 1989 was a Thursday.
July 26, 1989 fell on a Wednesday.