Abstract
The Embryo Project (EP) recently turned twenty years old. In honor of that milestone, this essay seeks to assess the project-where it started and where we are now, where it has had the greatest impacts, and where we might go from here. I write on behalf of the current Embryo Project editorial team. Briefly stated, we believe that EP's main contributions are (1) providing valuable information for users of many age groups and educational stages through a peer-reviewed, online, trusted information source; (2) educating both undergraduate and graduate students in the process of researching and writing historically grounded articles about science; and (3) providing a model for educators who are interested in developing similar projects.