CollectionThe Evolution of the Conservation Movement The Evolution of the Conservation Movement, 1850-1920 documents the historical formation and cultural foundations of the movement to conserve and protect America's natural heritage, through books, pamphlets, government documents, manuscripts, prints, photographs,...
- Date: 1850
CollectionProsperity and Thrift: The Coolidge Era and the Consumer Economy, 1921-1929 Prosperity and Thrift: The Coolidge Era and the Consumer Economy, 1921-1929, assembles a broad array of Library of Congress source materials documenting the prosperity of the Coolidge years, the nation's transition to...
- Contributor: Library of Congress. National Digital Library Program
- Date: 1999