No one knows exactly when the first caveman/woman carved their initials in a tree as a territorial marker, but we do know that wooden signage, along with cave drawings and papyrus and piles of stones, carved wood signs are one of the oldest types of guide markers.
Of course, they look a little better now than they did back then, we think. Of course, being what they were – wood – they didn’t last quite as long as the cave drawings or the clay tablets that the Mesopotamians used. Or the bronze signs that came later during the Greek and Roman Empire eras.
