The National Society of Colonial Dames of America (NSCDA) is a non-profit organization founded in 1891. It aims to promote an appreciation for American history and heritage, particularly from the colonial period. Members are women who can trace their ancestry to individuals who contributed to the founding of the United States, including those involved in the American Revolution. The NSCDA engages in various activities, such as historical preservation, education, and community service. The organization operates several historic sites and museums across the country, providing resources for research and public education about American history and the contributions of early settlers.