| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | hardtack | United States | Associated with military rations during wars, especially in the Civil War era | 1 |
| 2 | hardtack | United States | Associated with military rations and commonly eaten during the Civil War era | 1 |
| 3 | hardtack | United States | Associated with American Civil War rations, often considered as hard and tasteless. | 1 |
| 4 | hardtack | United States | Commonly associated with military rations in the 18th and 19th centuries, particularly during the American Civil War. | 1 |