On whom, then, was it so likely to fall as on the Jews, the usurers and the strangers who lived at enmity with the Christians?
They were everywhere suspected of having poisoned the wells or infected the air.

They alone were considered as having brought this fearful mortality upon the Christians.
They were, in consequence, pursued with merciless cruelty; and either indiscriminately given up to the fury of the populace, or sentenced by sanguinary tribunals, which, with all the forms of the law, ordered them to be burnt alive.

In times like these, much is indeed said of guilt and innocence; but hatred and revenge bear down all discrimination, and the smallest probability magnifies suspicion into certainty.

These bloody scenes, which disgraced Europe in the fourteenth century, are a counterpart to a similar mania of the age, which was manifested in the persecutions of witches and sorcerers; and, like these, they prove that enthusiasm, associated with hatred, and leagued with the baser passions, may work more powerfully upon whole nations than religion and legal order; nay, that it even knows how to profit by the authority of both, in order the more surely to satiate with blood the sword of long-suppressed revenge.
The persecution of the Jews commenced in September and October, 1348, at Chillon, on the Lake of Geneva, where the first criminal proceedings were instituted against them, after they had long before been accused by the people of poisoning the wells; similar scenes followed in Bern and Freyburg, in January, 1349.

Under the influence of excruciating suffering, the tortured Jews confessed themselves guilty of the crime imputed to them; and it being affirmed that poison had in fact been found in a well at Zoffingen, this was deemed a sufficient proof to convince the world; and the persecution of the abhorred culprits thus appeared justifiable.