Zürich, Braginsky Collection, B235 : Tefillot Yom Kippur Katan ("Prayers for the Minor Day of Atonement"), with Yiddish translation

The fast day Yom Kippur Katan has its origin in the holiday of Rosh Hodesh, which in biblical times marked the first day in the lunar calendar on which the crescent moon was visible after a new moon. This day, when work originally was not allowed, later, through the compilation of the Talmud, developed into a minor festival. The mystics of Safed in Upper Galilee turned Rosh Hodesh into a fast day …