Andrew Robinson, visiting fellow of Wolfson College, Cambridge, has written a fascinating article on ancient languages that have never been deciphered.  In “Decoding Antiquity: Eight Scripts That Still Can’t Be Read,” he reviews Linear A, Proto-Elamite, the Phaistos disc, as well as others from around the world.  The end of the article includes an inset box of ancient languages that have been cracked. 

HT: Explorator