Subject: Religious Controversies

Book published in 1794 arguing against the divinity and pre-existence of Christ, using the Jewish perspective on the Messiah. Authored by Joseph Priestley, a prominent 18th-century English theologian, natural philosopher, and political theorist known for his work on oxygen and his advocacy for religious toleration. The book reflects Priestley's attempts to fuse Enlightenment rationalism with Christian theism. Due to the controversial nature of his publications and his support for the French Revolution, Priestley was forced to flee England in 1791, eventually settling in Northumberland County, Pennsylvania.

Two-volume quarto edition of Johann Andreas Eisenmenger's controversial work, *Entdecktes Judenthum*, published in Frankfurt in 1700. This anti-Judaic text, also known as *Judaism Unveiled*, *Judaism Discovered*, or *Judaism Unmasked*, compiles citations from 193 Hebrew books and rabbinical tracts to criticize Jewish religious thought. The book's publication spurred significant controversy, leading to its suppression by the Habsburg emperor and subsequent reprinting in Berlin in 1711. The work remains a significant, though highly contested, source in the study of antisemitism and the history of interpretations of Jewish texts.

Four-page letter written by Dr. J. Mayer of Hartford, Connecticut, to Isaac Leeser on March 1863. Mayer discusses a recent controversy concerning the validity of a conversion, presenting his views using both practical observation and religious text. He requests Leeser to publish his views for the consideration of other rabbis.

Seven-page letter from Rabbi Henry A. Henry to Isaac Leeser, dated January 10, 1855, from New York, New York. Henry accuses Leeser of a personal vendetta, including unfounded attacks on Henry's reputation and livelihood since his arrival in America. The letter also alleges that Leeser withheld valid rebuttals from publication.

A three-page letter written by Isaac Leeser to Solomon Nunes Carvalho on August 23, 1852, discussing details of local events and offering advice on handling attacks against Leeser in the *Asmonean*, a Jewish periodical. The letter highlights Leeser's involvement in religious controversies and the support he received from his friends.

A two-and-a-half-page letter written by Isaac Mayer Wise from Albany, New York, to Isaac Leeser in Philadelphia, circa 1850. Wise sharply criticizes an article in Leeser's *Occident* magazine, written by someone identified only as "Truth." The letter includes a detailed critique of "Truth's" understanding of Jewish history, religious practice, and the role of the *Occident*. Wise's writing style is sarcastic and displays his intellectual prowess. He discusses the importance of history as a source of revelation and challenges "Truth's" interpretation of the Talmud. The letter also includes comments on the Charleston, South Carolina Synagogue and the Chasidic movement. Wise requests that his letter be published in the *Occident*. The letter is a historically significant document providing insight into the internal debates within the American Jewish community of the mid-19th century.

A one-page letter written in German (with a provided translation) by Louis Spanier of Albany, New York, to Isaac Leeser in Philadelphia, Pennsylvania, on August 4, 1850. Spanier expresses his disdain for Rabbi Isaac Mayer Wise and urges Leeser to publicly censure him. The letter foreshadows a contentious event at Beth-El in Albany the following month.

A one-page letter dated May 3, 1854, from Moses Ehrlich in Boston, Massachusetts, to Isaac Leeser in Philadelphia, Pennsylvania. The letter discusses the controversy surrounding Judah Touro's bequests and the conflict between recently arrived Eastern European Jews and the German Jewish establishment in Philadelphia. Ehrlich requests Leeser to publish congregational resolutions related to the dispute and to intervene with the estate's executors.

One-page letter dated September 17, 1850, from Robert Lyon, publisher of The Asmonean, in New York City to Isaac Leeser in Philadelphia. The letter discusses an editorial in The Occident that attacked Rabbi Isaac Mayer Wise and his Albany congregation, and Lyon seeks Leeser's help in absolving him of responsibility for the editorial. The letter quotes verbatim from the editorial.

A one-page stampless letter dated September 4, 1834, from S.I. Isaacs to T.I. Tobias in New York, New York. The letter addresses a synagogue controversy, specifically denying previous statements made by Isaacs to Mr. M.B. Seixas concerning Tobias's debts to the congregation.

A one-page letter written by Samuel L. Bruel of Cincinnati, Ohio, to Isaac Leeser on January 10, 1864. Bruel expresses strong opposition to the Reform Movement in Cincinnati, criticizing its practices and expressing concern about its impact on Orthodox Judaism. The letter provides firsthand insight into the debates surrounding the rise of Reform Judaism in the United States during the Civil War.

A four-page letter written by Solomon Nunes Carvalho from Charleston, South Carolina to Isaac Leeser in Philadelphia, Pennsylvania on December 29, 1852. The letter details a public dispute between Leeser and Reverend Solomon Jacobs concerning a sermon published in the Occident, and offers strategic advice to Leeser on how to respond.

Third American edition of "Letters of Certain Jews to Monsieur Voltaire," published in Cincinnati in 1848. This book contains letters purportedly written by Jews in response to Voltaire's critiques of Judaism and the Old Testament. The introduction notes testimony from J. Jonas, President of the Holy Congregation of the Children of Israel in Cincinnati. The original work, though presented as a Jewish defense, was actually authored by the Christian apologist Antoine Guenee and published in a translation by Philip Lefanu in Dublin in 1777. The book explores the historical debate surrounding Voltaire's views on Judaism and the complexities of interpreting his writings.

A three-page manuscript (plus a few lines on a fourth page) on 8" x 10" paper, possibly in the hand of Isaac Leeser. The manuscript explores the prophecy of the Messiah, citing various sources including Leeser's own book (Vol. 1, pg 131). Dated circa early 1850, it reflects Leeser's engagement with the contemporary controversy with Wise regarding the denial of the Messiah prophecy. The authorship is not conclusively determined but is strongly suggested by its content and discovery among other Leeser papers. The manuscript has been reviewed by Dr. Arthur Kiron (Schottenstein-Jesselson Curator of Judaica Collections) and Bruce Nielsen (Judaica Public Services Librarian and Archivist) at the Katz Center of the University of Pennsylvania.

Newspaper clipping from the *New-York Times*, published in New York, New York, on January 5, 1861. The clipping summarizes a sermon by Rev. Dr. Raphael on slavery, which was apparently misunderstood. The article appears on page 3, occupying approximately 1.5 columns.