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Filter: Subject of authors
Filter: Year of 1900-1999
| Date: | 1933 |
|---|---|
| Description: | Map created by International Harvester entitled: "The United States as it appeared in 1831 when Cyrus Hall McCormick invented the Reaper." The map pinpoint... |
| Conservationist, Writer, Explorer |
|---|
| Learn about the conservationist who was instrumental in the creation of Yosemite National Park. This article contains links to several primary sources. |
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