Image:USA Territorial Growth 1820.jpg
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| This is a file from the Wikimedia Commons. The description on its description page there is shown below. |
1970 USGS map
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This image is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of Interior. For more information, see the official USGS copyright policy |
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| US growth maps |
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| Years |
| 1775 · 1790 · 1800 · 1810 · 1820 · 1830 · 1840 · 1850 · 1860 · 1870 · 1880 · 1900 · 1920 |
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