A palindrome is a word or a phrase which reads the same backward or forward.
The word "palindrome" was coined by the English Ben Jonson in the 17th century from the Greek roots palin ("again") and dromos ("way, direction"). The longest English word which is a palindrome is "detartrated".
Palindromes date back at least to 79 AD, as a palindrome was found as a graffito at Herculaneum.
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. It means "The sower Arepo holds with effort the wheels".
The Romans loved palindromes, this is a sentence they created: "In girum imus nocte et consumimur igni", that means "we enter the circle after dark and we are consumed by fire".
The Greeks are known to have wrote this on their fountains: "Nipson anomemata me monan opsin" that means "wash the sin as well as the face"
The most famous palindromes are:
Madam, in Eden I'm Adam
A man, a plan, a canal, Panama!Amor, Roma
Was it a cat I saw?
No 'x' in Nixon