Final answer:
Phrenology was an early nineteenth-century pseudoscience that aimed to understand the workings of the mind by mapping the cranium, but it has since been discredited and is considered pseudoscience.
Step-by-step explanation:
Phrenology was an early nineteenth-century pseudoscience that aimed to understand the workings of the mind by mapping the cranium. Phrenologists believed that the size and shape of the skull could provide insights into a person's intelligence, capacities, and race. Although phrenology was popular at the time, it has since been discredited and is considered pseudoscience.