Question: Radagast was featured in the Silmarillion, which was published in what year?
Sentence (from "The Silmarillion"): "The Silmarillion", along with J. R. R. Tolkien's other works, forms an extensive, though incomplete, narrative that describes the universe of Eä in which are found the lands of Valinor, Beleriand, Númenor, and Middle-earth within which "The Hobbit" and "The Lord of the Rings" take place.
Relevant evidence: No