I popped on FB the other day to see one of those "you shared this last year" things. The above image is 2016's palindrome week.
What's that? Well take a close look at those numbers they are the same forwards as they are backwards.
In 2015 there was also a string of palindrome days:
5/10/15
5/11/15
5/12/15
5/13/15
5/14/15
5/15/15
5/16/15
5/17/15
5/18/15
5/19/15
According to Aziz Inan, an electrical engineering professor at the University of Portland (who happens to calculate these dates as a hobby), 5 digit palindromes aren't that rare.
We will soon have our 2017 palindrome:
7/10/17
7/11/17
7/12/17
7/13/17
7/14/17
7/15/17
7/16/17
7/17/17
7/18/17
7/19/17
So, at this point you get the idea behind the 5 digit palindromes that can occur. According to the above mentioned professor, it's the 7 or 8
digit palindrome dates that are much more rare. Apparently only 38 of these such palindromes will occur in the 21st century! The last one we had was: 11/02/2011
Aziz Anan says, "Eight-digit palindrome dates are very rare, and are clustered in the first three or so centuries at the beginning of a [millennium], and then don't show up for 600 to 700 years, until they appear as a cluster in the next millennium."
I have always found numerology to be intriguing. These dates really kinda put our existence into perspective!!
Source 1: https://www.google.com/amp/s/amp.livescience.com/50807-palindrome-week-rare-dates.html
Source 2:
http://abc7news.com/society/palindrome-week-every-date-the-same-forwards-and-backwards/715278/