Five years earlier that the date in question. I leave the simple calculation to the student.
The date 5 years ago today was [current date] - 5 years.
As of July 21, 2010, the date 25 months ago today was June 21, 2008.
As today is the 17th of March 2018, then 29 years ago it was the 17th of March 1989.
1913 (2013)
19 years ago today it was Wednesday May 27, 1998.
Sunday, January 1st, 1995
Quite a bit less then today.
It was probably last month, the same weekday as today. Sometimes it will be 2 months ago and you will have to turn the calendar page back down to see it. If the date is January 29, five weeks ago was Christmas (of last year).
This depends on what today is. See the related link, "100 years ago today". To calculate late the date, subtract 100 from the current year, and use the same date. For example, of today were July 5, 2015, then 100 years ago would be July 5, 1915, since 2015 - 100 = 1915.
Depending on what date you are thinking of, and what date it is today, it would vary a bit, but one could say approximately 3,010 years ago.
It was probably last month, the same weekday as today. Sometimes it will be 2 months ago and you will have to turn the calendar page back down to see it. If the date is January 29, five weeks ago was Christmas (of last year).