Here's a brief breakdown of her portrayal in the text:
* Description: Hesiod describes Medusa as one of the three Gorgon sisters, daughters of Phorcys and Ceto. She is specifically noted for her monstrous appearance, including snakes for hair and the ability to turn anyone who looks at her into stone.
* Origin Story: *Theogony* doesn't detail Medusa's specific origin story as it does for other monsters, but it does establish her as a creature born from the primordial forces of chaos.
It's worth noting that while *Theogony* is Medusa's earliest literary appearance, she was likely a part of Greek mythology and oral tradition long before Hesiod wrote his poem.
It's also important to note that *Theogony* is a poem, not a drama. Medusa's appearance in dramatic works would come later. However, it is difficult to pinpoint the exact first dramatic appearance of Medusa, as ancient Greek theatre was largely oral tradition.