Homer Hailey (Campbellite) argues that "synagogues" in the Book of Mormon is an anachronism.
Homer Hailey, Notes on Mormonism (Charleston, AR: Cobb Publishing, 2020), 62
2. Synagogues in the land, “. . . and also in their synagogues, which were built after the manner of the Jews.” 236:13.
“It (synagogue) must have come into being during the Babylonian exile.” ISBE, article Synagogue. But the Nephites, who came over before the Babylonian exile claim to have had them “after the manner of the Jews.” This proves the Book of Mormon a fraud.