It's always fun to find signs and images in the natural world, from faces in wood whorls to accidental optical illusions. So ...

Goldwasser calls the sphinx discovered at Serabit “the Rosetta stone of the alphabet ... The Petries recognized the signs as an alphabet, though decoding the letters would take another ...

Archaeologists have discovered what may be the world's earliest known rune-stone ... the letters of an alphabetic script used to write Germanic languages before the adoption of the Latin alphabet.