A rounded kind appeared while in the Chalcidian alphabet, and from this it had been taken into Latin. Etruscan had no rounded form, but it seems in Umbrian and Faliscan. In England from the 17th century a looped form was released, which is once in a while however witnessed in https://budnakedkits31975.humor-blog.com/30532966/s-no-further-a-mystery