Roger Williams founded Providence (1636) on a radical principle: soul liberty — no state church, no religious test for citizenship.
1663 Royal Charter (Charles II): "No person shall be any wise molested... for any differences in opinion in matters of religion." Unique among colonies.
Massachusetts: Congregational establishment, heresy banishment (Williams, Hutchinson).
Pennsylvania: Quaker-led, broad tolerance but Christian frame.
Rhode Island: Separation of church and state — 130 years before Constitution.
Only freemen (property-owning males) voted. Indigenous (Narragansett, Wampanoag) displaced. Slavery existed (Newport = major slave port). "Soul liberty" didn't extend to bodies.
But for conscience — Rhode Island was the first political entity in the West to say: belief is not the state's business. That legacy endures.