Final answer:
The headline most likely refers to the Boston Tea Party in response to the Tea Act of 1773. This event and the subsequent Intolerable Acts imposed by the British led to increased tensions and the eventual drafting of the Declaration of Independence by the American colonists.
Step-by-step explanation:
The newspaper headline that reports a British action which angered the colonists and contributed to the writing of the Declaration of Independence likely refers to the event known as the Boston Tea Party. This was in response to the Tea Act of 1773, which granted the East India Company a monopoly on the export of tea to the colonies, effectively giving them an unfair advantage over colonial merchants and enforcing a tax on the tea. The Intolerable Acts were a series of punitive measures taken by the British in retaliation for the Boston Tea Party and further fueled the colonists' resolve, leading eventually to the Declaration of Independence.