Palindrome (; "again") and ' (; "way, direction"). Palindromes date back at least to 79 AD, as a palindrome was found as a graffito at Herculaneum, a city buried by ash in that year. This palindrome, called the Sator Square, consists of a sentence written in Latin: "Sator Arepo Tenet Opera Rotas" ("The sower Arepo holds with effort the wheels"). It is remarkable for the fact that the first letters of each word form the first word, the second letters form the second word, and so forth. Hence, it can be arranged into a word square that reads in four different
Palindrome palindromic strings, excluding the trivial one-letter palindromes – otherwise all strings would be palstars. [[Category:Palindromes| ]] Palindrome A palindrome is a word, number, phrase, or other sequence of characters which reads the same backward as forward, such as "madam" or "racecar" or the number "10201." Sentence-length palindromes may be written when allowances are made for adjustments to capital letters, punctuation, and word dividers, such as "A man, a plan, a canal, Panama!", "Was it a car or a cat I saw?" or "No 'x' in Nixon". Composing literature in palindromes is an example of constrained writing. The word "palindrome" was