Archaeologists in Norway said Tuesday that have found a runestone which they claim is the world’s oldest, saying the inscriptions are up to 2,000 years old and date back to the earliest days of the enigmatic history of runic writing.

The flat, square block of brownish sandstone has carved scribbles, which may be the earliest example of words recorded in writing in Scandinavia, the Museum of Cultural History in Oslo said. It said it was “among the oldest runic inscriptions ever found” and “the oldest datable runestone in the world.”

“This find will give us a lot of knowledge about the use of runes in the early Iron Age. This may be one of the first attempts to use runes in Norway and Scandinavia on stone,” Kristel Zilmer, a professor at University of Oslo, of which the museum is part, told The Associated Press.

Older runes have been found on other items, but not on stone. The earliest runic find is on a bone comb found in Denmark. Zilmer said that maybe the tip of knife or a needle was used to carve the runes.