Answer:
In colonial America, enslaved workers who received manumission were freed by slave owners.
Step-by-step explanation:
Manumission is the name given to the process of freeing a slave, after which he became a freedman. A slave, by affection, rendered favors, merits, personal qualities, good will of the owner, could become a freedman. Most of the freedmen simply climbed a step in the social stratification, going on to make a living with their work, so many of them continued to work for their previous owners, now employers.