Ancient tablets found in South Bulgaria are written in the oldest European script found ever, German scientists say.

The tablets, unearthed near the Southern town of Kardzhali, are over 35-centuries old, and bear the ancient script of the Cretan (Minoan) civilization, according to scientists from the University of Heidelberg, who examined the foundings. This is the Cretan writing, also known as Linear A script, which dates back to XV-XIV century B.C.

The discovery proves the theory of the Bulgarian archaeologists that the script on the foundings is one of the oldest known to humankind, the archaeologist Nikolay Ovcharov announced Wednesday.

Ovcharov, who is heading the archaeological expedition in the ancient Perperikon complex near Kardzhali, called the discovery "revolutionary". It throws a completely different light on Bulgaria's history, he said in an interview for the National Television.