Which significant event in 1707 permanently changed the political relationship between England, Wales, and Scotland?
Explanation
In 1707, the Act of Union was passed, uniting the Kingdoms of England and Scotland into a single political entity known as Great Britain. This legislation fundamentally altered the governance and relationship between England, Wales, and Scotland, creating a unified parliament and government. The other options, such as the Toleration Act and the Spanish Armada invasion, occurred in different periods and had distinct impacts.