Interesting article discussing whether a Sumerian priestess - Enheduanna - may have claimed that title! in about 2300 BCE. Daughter of King Sargon of Akkad.
'“Let them know that you grind skulls to dust. / Let them know that you eat corpses like a lion.” '
'We have to think there were hundreds of women before her participating in oral literature.”
Haider Almamori, archeologist, University of Babylon
Here's a translation:
www.thehypertexts.com/Enheduanna%20Poetry%20Modern%20English%20Translations%20Temple%20Hymns%20Exaltation%20of%20Inanna%20.htm
'Enheduanna may have been the first feminist, or at least the first feminist we know by name. In one of her poems the goddess Inanna kills An, the former chief deity in the Mesopotamian pantheon, and thus becomes the supreme leader of the gods. It seems Enheduanna may have "promoted" a local female deity to the Queen of Heaven. Might this be considered the first feminist poem? Was Enheduanna commenting on the male-dominated society in which she lived, and perhaps even "projecting" her wishes on male rivals, to some degree?'
This is very much contested - maybe some posters here know more about it, but I found it quite an interesting wee bit of feminist history.
en.wikipedia.org/wiki/Enheduanna#Authorship_debate