The Buddhist Nuns carry more rules of conduct then monks but they were very important and still are in the Asian Mahayana traditions. The Nuns in the Theravada tradition became extinct and cannot be resurrected because of rules in the vinaya. Tibetan Buddhism never established Nuns but they are working on developing the tradition now...it's complicated because of the rules in the vinaya, their codes of conduct.
Buddhism was the first religion in it's time to allow women to become monastics, it was a game changer!
Wow, that's really interesting. I'll have to look up more, all so fascinating. :)