The policy that allowed settlers in new territories to decide whether or not to allow slavery was called popular sovereignty. westward expansion. manifest destiny. territorial election.

The policy that allowed settlers in new territories to decide whether or not to allow slavery was called  popular sovereignty.

Explanation:

The popular sovereignty was a policy by which they were the inhabitants of each state, that is to say the people, that had the sovereignty to decide if the state would admit or not the slavery in its territory.

In other words, popular sovereignty left the issues of slavery to the choice of the people of each state.

the united states presidential election of 1844 was the 15th quadrennial presidential election, held from november 1, to december 4, 1844. democrat james k. polk defeated whig henry clay in a close contest that turned on the controversial issues of slavery and the annexation of the republic of texas.

workers of lowell mills were greatly benefited for the waltham type of work which was more a paternalist kind, trying to protect the integrity of this little girls coming from small farmers and providing an adequate place of work, this in an effort to avoid the issues of bad place conditions and immorality that the people in bigger industrialized cities of great britain were experimenting.