Final answer:
Two details that support the inference that Boston's Puritan society was harsh and unforgiving are the Salem witch trials where nineteen people were executed for witchcraft, and the fact that hundreds of people were accused of witchcraft in Puritan New England.
Step-by-step explanation:
- The Massachusetts Bay Colony's darkest moment came during the 1692 Salem witch trials when Puritan leaders executed nineteen people for witchcraft.
- Like many other Europeans, the Puritans believed in the supernatural and accused hundreds of people of witchcraft in Puritan New England.