Where do nuns come from?
"Where do nuns come from?"
Nuns are not and never have been ordained. Only Protestants ordain women. There were, however, women deaconesses who were consecrated in a particular way which distinguished their position from that of the sacramental/liturgical priestly orders, in the early Church. The Synod of the Church of Greece has determined to reestablish this role for women quite recently.
Antarctica.
I am not sure what prompts the question, but according to some early Christian writings, Virgin Mary was the first nun and ran the furst nunnery.