The Nuttall Encyclopedia
A statue of Pallas in Troy, on the preservation of which depended the safety of the city, and from the date of the abstraction of which by Ulysses and Diomedes the fate of it was doomed; it was fabled to have fallen from heaven upon the plain of Troy, and to have after its abstraction been transferred to Athens and Argos; it is now applied to any safeguard of the liberty of a State.
Wood, James, ed. Entry for 'Palladium'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/p/palladium.html. Frederick Warne & Co Ltd. London. 1900.