Final answer:
In 1588, the Spanish Armada was defeated by the British Royal Navy in the English Channel, leading to the destruction of most of the Spanish navy. This event had significant implications for the Spanish Empire.
Step-by-step explanation:
In 1588, the Spanish Armada was defeated by the British Royal Navy in the English Channel. During their retreat, most of the Spanish navy was destroyed by storms, leaving the British in control of the Atlantic. This event marked the beginning of the end of the Spanish Empire as a major European power.