Columbia subject headings:
Harvard subject headings:
Advertising--History--19th century.
Advertising--Social aspects
Imperialism
Indigenous peoples and mass media.
Popular culture in advertising--History--19th century.
Racism
Racism in popular culture--History--19th century.
Princeton subject headings:
Advertising--History--19th century.
Popular culture in advertising--History--19th century.
Racism in popular culture--History--19th century.