Which is the oldest book?

The small book which age is over 2.5 thousand years was accidentally discovered 60 years ago in an old tomb with frescoes. The tomb was discovered in the Valley of Bulgarian Struma River during road construction works. The authenticity of the book was confirmed by two independent experts in Sofia and London, Director of the Museum Bozhidar Dimitrov says. As is considered, the 6 gold pages fastened together are unique; only single plates with texts in Etruscan have been discovered until recently. "Kartik"