Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Mammoth Cave National Park' has mentioned 'Trade' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| In partnership with Valentine Simon, various other individuals would own the land through the War of 1812, when Mammoth Cave's saltpeter reserves became significant due to the Jefferson Embargo Act of 1807 which prohibited all foreign trade. | WIKI |