Original sentence: Certainly the Visigoths did behave in a manner which might have given birth to the expression, as they adopted harsh policies against all others religions after their conversion to Catholicism
Edited sentence: Certainly the Visigoths did behave in a manner which might have given birth to the expression; after they established a highly tolerant citizenship open to any religion, either Arian, Catholic, Jew or pagan, they converted from Arianism to Catholicism and adopted harsh restrictions against all others religions, even their own Arianism.This conversion to Catholicism was the occasion for Wisigothic rulers to become real "Spanish" as their roman compatriots, but they went into a serial of measures against pagans, pricilianists, heretics and Jews