U.S. History
- Disasters
- Distilling
- Dollar diplomacy
- Dollar Sign
- Donner Party
- Dorrs Rebellion
- Dot-Com
- Doubloon
- Downsizing
- draft riots
- Drinking and Alcoholism
- Drug abusers
- drug addiction
- Dunmores War
- Early Exploration of America
- Emancipation Proclamation
- Embargo Act of 1807
- Employment Act of 1946
- Energy industries
- Engineering Education