Pope Pius VI issues his infamous Editto sopra gli ebrei, "Edict concerning the Jews," reinstating all the anti-Semitic legislation which had long characterized Catholic treatment of Jews but which had been reformed under Pope Clement XIV.
According to the edict of Pope Pius VI:
"Among the pastoral solicitudes that occupy the soul of the Holiness of our Lord (the pope) at the outset of his Pontificate, the foremost priority is that which guards the Catholic religion from corruption among the Faithful.
Considering, therefore, the need to protect the faithful from the danger of subversion that can result from excessive familiarity with the Jews, the exact observance of the measures taken by [the Pope's] glorious predecessors is absolutely necessary."
Pope Pius VI's edict contains 44 clauses which call for executing any Jew found outside the newly reformed ghettos after dark, forbid the study of the Talmud, forbidding Jews to sell milk, bread, or meat to Christians, forbidding Jews from owning stores outside the ghettos, forbidding Christians from entering synagogues, forbidding Jews from Jews from having any relations with Christian neighbors, requiring Jews to "wear a yellow-colored" badge on their clothing, and much more.
Forcing Jews to live in ghettos is one of the most important anti-Jewish measures created by the Catholic Church during the Middle Ages. Jews are placed in ghettos in order to prevent them from interacting on a normal, human basis with Christians.
A Jewish presence among Christians is abhorred and Jews themselves are treated like carriers of a pestilence who must be quarantined lest they infect healthy people.