In the marxist view, what has been the course of history? what was the state of politics when the manifesto was composed?

lincoln declared that slavery should not be allowed to spread into the new states, and of course this angered the south at the time.

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.