no
June 15, 1846
June 15 , 1846
when the Oregon treaty was signed.
This was the Oregon Treaty which established the boundary between the Oregon Territory and Canada.
Oregon Treaty, (49th Parallel)
The Oregon Treaty was signed on 15 June 1846.
If you mean the Oregon Treaty, that is a treaty between the United Kingdom and the United States that was signed on June 15, 1846 in Washington D.C.
Reference to a 1946 Washington Treaty cannot be found. Perhaps you are referring to the Oregon Treaty, which was signed in Washington, D.C. on June 15, 1846. The Treaty of Oregan ended the boundary dispute concerning the Oregon Country, which had been occupied by Britain and US since the Treaty of 1818.
June 15, 1846 in Washington D.C.
49 degrees
The states created were Oregon, Washington,Idaho and a tip of Wyoming.