Development of the Old Testament canon "Apocrypha" ("hidden"). To counter Luther's "heresy", the fourth session of the Catholic Council of Trent in 1546 confirmed that the deuterocanonical books were equally authoritative as the protocanonical in the Canon of Trent in the year Luther died. Following Jerome's "Veritas Hebraica" (truth of the Hebrew) principle, the Protestant Old Testament consists of the same books as the Hebrew Bible, but the order and division of the books are different. Protestants number the Old Testament books at 39, while the Hebrew Bible numbers the same books as 24. The Hebrew Bible counts Samuel, Kings, and Chronicles as one book each,
The Fourth Dimension (book) Publications with its original subtitle. Like other Rucker books, "The Fourth Dimension" is dedicated to Edwin Abbott Abbott, author of the novella "Flatland". "The Fourth Dimension" teaches readers about the concept of a fourth spatial dimension. Several analogies are made to "Flatland"; in particular, Rucker compares how a square in Flatland would react to a cube in Spaceland to how a cube in Spaceland would react to a hypercube from the fourth dimension. The book also includes multiple puzzles. "Kirkus Reviews" called it "animated, often amusing", and a "rare treat", but noted that the book eventually leaves mathematical topics behind