Final answer:
The imposition of the Stamp Act influenced the creation of the principle 'All men are created equal' from the Declaration of Independence.
Step-by-step explanation:
The British action that influenced the creation of the principle 'All men are created equal' from the Declaration of Independence was the imposition of the Stamp Act. The Stamp Act, which was a direct tax on colonists, reinforced the sense among colonists that they were not being treated as equals by the British Empire. This led to the first major colonial protest against British imperial control, with the famous slogan 'no taxation without representation.'