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 1959, the United States added two more states to the Union: Alaska and Hawaii, the non-contiguous states. Alaska was admitted to the Union on January 3, 1959, becoming the 49th state, and Hawaii joined on August 21, 1959, becoming the 50th state.