Political interpretations of The Wonderful Wizard of Oz include treatments of the modern fairy tale as an allegory or metaphor for the political, economic, and social events of America in the 1890s. Scholars have examined four quite different versions of Oz: the novel of 1900, the Broadway play of 1902, the Hollywood film of 1939, and the numerous follow-up Oz novels written after 1900 by Baum and others.

Bimetallism, also known as the bimetallic standard, is a monetary standard in which the value of the monetary unit is defined as equivalent to certain quantities of two metals, typically gold and silver, creating a fixed rate of exchange between them.