Final answer:
Alabama was the last state to license chiropractic. Virginia played a key role in establishing the separation of church and state through the Virginia Statute for Religious Freedom, setting a precedent for religious liberty in the United States.
Step-by-step explanation:
The last state to license chiropractic was Alabama. Chiropractic care focuses on the diagnosis and treatment of mechanical disorders of the musculoskeletal system, especially the spine. Licensure for chiropractic in the United States differs from state to state, but Alabama was the final state to grant licensure to chiropractors.
In terms of the question about the clearest separation of church and state, Virginia is known for its significant role in establishing the principle of separation of church and state. The Virginia Statute for Religious Freedom, authored by Thomas Jefferson and passed in 1786, is one of the critical historical documents in this regard. This statute is seen as a forerunner to the First Amendment protections of religious liberty, and it served as an influential example of the clear separation of religious institutions from governmental authority.