Hermes invents language

“It was by Hermes, for instance, according to them, that the common language of mankind was first further articulated, and that many objects which were still nameless received an appellation, that the alphabet was invented, and that ordinances regarding the honours and offerings due to the gods were duly established; he was the first also to observe the orderly arrangement of the stars and the harmony of the musical sounds and their nature, to establish a wrestling school, and to give thought to the rhythmical movement of the human body and its proper development. He also made a Iyre and gave it three strings, imitating the seasons of the year; for he adopted three tones, a high, a low, and a medium; the high from the summer, the low from the winter, and the medium from the spring. The Greeks also were taught by him how to expound (hermeneia) their thoughts, and it was for this reason that he was given the name Hermes. In a word, Osiris, taking him for his priestly scribe, communicated with him on every matter and used his counsel above that of all others. The olive tree also, they claim, was his discovery, not Athena’s, as Greeks say.” - Diodorus Siculus 1.16