The American Journal of Public Health in collaboration with 1,000 Days, a FHI Solutions initiative, intends to publish a special issue exploring the importance of the 1,000-day window from pregnancy to age 2 for maternal and child nutrition and health in the United States. Original research, systematic reviews, essays, and editorials are invited. Manuscripts must be submitted to AJPH by March 1, 2022, via the online submission system at https://www.editorialmanager.com/ajph. The call for papers is available here.