Despite the presence of a vigorous debate over the proper scope of trademark protection, scholars have largely ignored study of trademark law\u27s origins. It would be a mistake, however, to ignore the history behind trademark law. Scrutiny of the formative era in American trademark law yields two important conclusions. First, courts granted robust legal protection to trademark holders in the early twentieth century because they accepted the benign view of advertising presented to them by advertisers. As advertising became linked to cultural progress and social cohesion, courts adopted doctrinal revisions to protect advertising\u27s value that remain embedded in modern trademark law. Second, judges adopted a specific construction of the con...