Topic summary
Deuterocanonical

Extracted from the Wikipedia article Deuterocanonical books.
Historical background
Deuterocanonical is a term coined in 1566 by the theologian Sixtus of Siena, who had converted to Catholicism from Judaism, to describe scriptural texts considered canonical by the Catholic Church, but which recognition was considered "secondary". For Sixtus, this term included portions of both Old and New Testaments. He also applies the term to the Book of Esther from the canon of the Hebrew Bible.