Congress passed the . . . <u><em>D.) Oklahoma Organic Act </em></u>. . . to establish the guidelines for Oklahoma Territory.
Polk wanted to push Mexico into negotiating with the USA. He did not expect Mexico to put up such a fight.
The Rough Riders were a famous group of horsemen during the Spanish-American War. They were led by Theodore Roosevelt. Roosevelt actually resigned from office so that he could serve.
An example is The Fugitive Slave Act. Answer B
The name is Pre-Cambrian era
