The last country in the world to challenge the United States control of Oregon was Great Britain. Oregon was won in the War of 1812.
Oil maybe I think it is about oil
I believe the document is the Emancipation Proclamation, and it was issued by president Abraham Lincoln.
Hello
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<em>In Feb 1807, explorer Lt. </em><em>Zebulon Pike </em><em>was arrested on the upper Rio Grande River by Spanish forces on his government-sanctioned exploration of the Arkansas and Red Rivers.</em>
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Best regards
ireal declared it independence may 14th 1948