193 - 211 LUCIUS SEPTIMIUS SEVERUS (Roman Empire)
Numbered as one of the emperors friendly to the Jews. Part of his attitude was in response to the support he received from the Jewish communities in his war against Pescennius Niger, who had once told a Jewish delegation that he was sorry he couldn't tax the air they breathed. In spite of this, Severus forbade Jews from converting anyone to Judaism. Under his reign Jews could be appointed to public offices, but were exempt from those formalities which were contrary to Judaism.
Wrote his "Adversus Iudaeos" (Against the Jews), supposedly portraying an argument between a Jew and Christian. In it (the first of its kind in Latin), the Christian "proves" that they have displaced Judaism, taking over as the "People of God". Tertullian (c. 155 – c. 240) wrote another book in 221 ("Against Marcion"), which included much of his anti-Judaic ideas. Chrysostom (see 386) and Pseudo-Gregory of Nyssa (see 390) wrote a number of other texts with similar names (Adversus Iudaeos).