I have several Saturday dates I need to find out what year they could
have existed.  (Archiving old speaking engagements between 1985 and
2000 where they forgot to document what year they spoke).  IE what
possible years between 1985 and 2000 was June 16th a saturday?  Is
there a calendar/converter/lookup website I can use to determine dates
like these? (please don't send me to tondering's calendar.  I didn't
get it.)

Hi lindell,

The following site should be ideal for your purpose. You enter a date
and it will tell you the corresponding day of the week.
I entered June 16th from the year 1985 up to 2000 and the only day it
was a Saturday was in the year 1990.

TravelFurther: Day of the Week Calculator
http://www.travelfurther.net/dates/datesrus.asp


The site below gives you the formula for working out the day of the
week of any year.

Koshko: Day-of-the-Week Finder
http://www.koshko.com/calendar/day-of-week.shtml 


Search criteria:
calendar lookup 
calendar calculator lookup 
"day of the week" calculator


I hope this helps. 

Best regards,
rainbow-ga