To minimize the number of free and slave people in the United States states
It spread to China and became popular
D. It tripled, mostly due to people moving in from other places
Explanation: in 1850 the population of Texas was 212,592. In 1860 the population shot up to 604,215
The first battle,Fort Sumter had a major impact on the south therefore causing the south to secede from the U.S,the battle of Gettysburg helped the north pushed back the south badly causing critical casualties towards the Confederate army,hope this helped