Final answer:
William Penn called his settlement a 'Holy Experiment' to promote religious freedom and tolerance.
Step-by-step explanation:
William Penn called his settlement a 'Holy Experiment' because he wanted people to be able to worship according to their own consciences. He believed in religious freedom and wanted to create a place where people could practice any religion they chose, without fear of persecution. This was a radical idea at the time, as many colonies imposed strict religious beliefs on their inhabitants. Penn's goal was to establish a society that promoted tolerance and allowed individuals to follow their own spiritual beliefs.
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