They brought settlers who formed colonies. They established the boarderlands that started the formation of America.
The Antebellum Period in American history is generally considered to be the period before the civil war and after the War of 1812. <span>Slaves in the U.S. resisted their bondage through many passive forms of resistance, such as damaging equipment, working slowly, or keeping their culture and religious beliefs alive, although that often required secrecy. </span>
The largest fear was the position on the slave issue. The pro and anti slavery advocates feared that the addition of California to the Union could cause a senate majority on the other side. The territory was left without a formal government after a debate within the senate and failed the amendments about the addition of California.