The emergence of the first modern advertising agencies in the 1870s marked a turning point in marketing and consumer culture. These agencies began to create branded campaigns that stimulated desire for consumer products, reflecting the rise of mass production and consumption. The professionalization of advertising helped shape public perceptions and consumer behavior, influencing how products were marketed and sold. This development laid the groundwork for the advertising industry as we know it today.

The emergence of modern advertising agencies in 1870 reshaped consumer identity, influencing modernist poetry. Poets like T.S. Eliot critiqued or embraced the impact of consumer culture, exploring themes of alienation and identity in their works, reflecting the complexities of modern life.