Although millions of speakers of Spanish employ "voseo", the twentieth century did not see a single article published in "Hispania" that suggested incorporating instruction on "voseo" into the language classroom. In contrast, the twenty-first century has already seen three articles published in "Hispania" that have suggested teaching "voseo". At the same time, trends in study abroad and immigration are increasing links between the United States and three "voseante" nations. This essay investigates the field's evolving treatment of "voseo", with a special focus on "Hispania's" first 100 years, and argues for the need to incorporate "voseo" into the twenty-first-century classroom