Why is Australia so little known about and studied in the United States when prima facie it is one of the best comparators for America; and why do Australian comparativists often ignore the American case? The discourse of difference has predominated in America rather than the discourse of similarity. But in Australia the opposite has been true. Here an equally powerful theme has been one of searching for comparisons, similarities, and generalities between Australia and other nations and societies. Through thinking about answers to these questions, partly via a discussion of some recent writing on America and Australia, this essay argues a case for the necessity for comparison within a world history perspective. More particularly, it argues that American intellectuals and journalists should pay more attention to comparators like Australia since its similarity with America affords valuable insights into American history, politics, economy, society, and institutions, just as the converse has proven to be valuable.