Dr. Adam Rovner's book, "In the Shadow of Zion: Promised Lands Before Israel," delves into the lesser-known attempts to establish Jewish political entities in the 19th and 20th centuries, apart from Zionism.

Dr. Adam Rovner, an expert in Jewish literature, discusses his book "In the Shadow of Zion: Promised Lands before Israel," exploring six unsuccessful attempts to create Jewish states before Israel in the 19th and 20th centuries.

Dr. Adam Rovner's book "In the Shadow of Zion: Promised Lands before Israel" explores the unsuccessful attempts to establish Jewish political entities in the 19th and 20th centuries before Israel.