Final answer:
The Knights of Labor assumed laborers and capitalists shared interests, welcoming a broad membership and advocating for worker control of factories and an eight-hour workday, whereas the IWW adopted a more radical socialist approach.
Step-by-step explanation:
The Knights of Labor (KOL) differed from the Industrial Workers of the World (IWW) in that the KOL assumed both laborers and capitalists had shared interests. Specifically, the KOL was inclusive, welcoming all wage workers, regardless of race, gender, or skill level, with a few exceptions for professions like doctors, lawyers, and bankers.
Contrary to the IWW which later emerged with a more radical approach, encouraging more political alignment with socialists and pushing for direct action. The KOL thrived on the basis of advocating for an eight-hour workday, the elimination of convict labor, equal pay, improved safety conditions, and the idea that factories should be controlled and owned by the workers collectively.