|Letter from the Cherson Geniza, apparently from a student of the Baal Shem Tov|
Today we, the undersigned, bring good tidings to all of Israel. Through the efforts of the Bishop Sokolski of Lvov (may he live and be well) we, the signatories below, were victorious over the evil cult of...Jacob Frank and his evil group...
G-d assisted us to be victorious - therefore we and our children and all who participated, undertake from now on and for all time to make this day a festival and holiday of eating, drinking and joy in every place, in the merit of G-d...permitting us to victoriously tread on their altars, raising up the light of Israel.
Signed on this day in Lvov:
Chaim haCohen Rappaport ben haRav Simcha - Av Beit Din City of Lvov
Yisroel ben Moraynu Eliezer of Medzibuz
Yitzchok Dov Ber Margolios of Yazilovich
Dov Ber ben Avraham of Mezrich
Yaacov Yosef haCohen of Polnoa
Zev Wolf Kitzes
LETTER 2: 
We the undersigned have taken upon ourselves to make an annual celebration on the 26th of Tammuz. It should be a day of eating, drinking and gladness in remembrance of the great miracle and kindness that G-d did for us on this day.
There rose against us a wicked, evil enemy...Jacob Frank...He misled Jews into idolatry and influenced many of our faith, and now G-d has upturned his evil plans and made him fall into the very pit he had prepared for others.
With the help of Bishop Tikulslki (Sokolski or Mikulski) of Lvov (may he live and be well) who called the three of us from the Chassidic brotherhood on the 23rd of Tammuz 5519 (1759) to debate against the evil ones...and a hearing of their issues against (the Jewish religion). A thorough investigation was conducted between us. G-d stood in our defence...leaving intact the good name of the Jews.
We made a pact in our hearts to declare this day, forever, a holiday of feasting, drinking and happiness for ourselves and our children and for all who participated.
We attach our signatures on this day, the 27th of Tammuz 5519 (1759) in the City of Lvov:
Chaim haCohen Rappaport - Chief Rabbi of Lvov and the Country
Yisrael ben Eliezer of Medzibozh
Yitzchok Dov Ber Margolios of the city of Yazlovich
Dov Ber ben Avraham of the town of Mezrich
Yaacov Yosef haCohen of Polona
Zev Wolf Kitzes
|Illustration of Bishop Dembowski drinking in celebration after burning volumes of the Talmud.(From Sefer Shimush by R. Yaakov Emden. Amsterdam 1757.|
 The Jewish Time Line Encyclopedia: A Year-by-Year History...by Mattis Kantor, p. 223.
 The original letters were apparently hidden and copies were hastily made.