Final answer:
The Quartering Act was the British law from before the American Revolution that the Third Amendment addressed. It required the American colonists to house and provide food for British soldiers stationed in the colonies.
Step-by-step explanation:
The British law from before the American Revolution that the 3rd amendment addressed was the Quartering Act. This act required the American colonists to house and provide food for British soldiers stationed in the colonies. The colonists viewed this as a violation of their rights and it was a significant grievance that led to the inclusion of the Third Amendment in the Bill of Rights.