Scale (anatomy) Schultz's rule; Scur; Scute; Sexual dimorphism; Sexual mimicry; Skeleton; Skin; Snout; Spermatheca; Spongy tissue; Spur (zoology) Stifle joint; Stinger; Suture (anatomy) Symmetry in biology
The first officially sanctioned geographic and political limits associated with the Louisiana. Purchase were not laid down until the state of Louisiana was admitted to the union in 1812âthe. first state carved out of the Purchase as well as the first state west of the Mississippi.
In 1846, the border between U.S. and British territory was formally established at the 49th parallel â the part of the territory that was given to Britain would ultimately become part of Canada. Oregon was officially admitted to the union as a state on February 14th, 1859.859 1  -. February 14 - Oregon becomes the first state admitted to the Union with an exclusion law written into the state constitution. 2  Propositions of Congress accepted by the State 3 June 1859.  3 Oregon Democrat newspaper begins printing.