The issue of child marriage has recently become a major focus for advocacy organizations. This project tracks the changing dynamics of campaigns against child marriage as an emerging pathway of the human rights regime: diffusion. Focusing on 35 non-governmental organizations (NGOs), intergovernmental organizations (IGOs), government agencies, and legislative bodies, the project uses machine-learning approaches to analyze over 14,000 documents produced by these organizations since 2011. Using a variety of statistical tools, the project analyses how the eradication of child marriage became entrenched in the existing advocacy lexicon over time. The project also focuses on the organizational characteristics that aid in the production of more child marriage-related documents on the topic over time. Further, the project offers tentative evidence that NGOs may be changing the media’s discussion of the issue.