The accessibility of the palindrome in ancient times to the lands east and south-east of the Mediterranean implies evidence that its intrigues as a language form antedate the Romance language family and were operant in a murkier, and far more remote, period.
Borgmann, Dmitri A.
"Palindromes: The Ascending Tradition,"
Word Ways: Vol. 13
, Article 9.
Available at: http://digitalcommons.butler.edu/wordways/vol13/iss2/9