From the era of foot-binding, Nüshu, the extinct women’s script and Nüge music from China.
Hmm, looks like the Korean Hangul script and the Japanese Hiragana script, also pronunication-based scripts, also started out as scripts predominately used by women.
You won’t find that out from Wikpedia though, which says Hangul was invented by a king. You have to go to the Origin of Hangul article to see it even mentioned. The Hiragana article at least mentions it, as the Lady Murasaki’s 11th century court novel The Tale of Genji was written in this script.
Nothing like a little mansplaining to get something accepted.