
This iconic 1846 lithograph by Nathaniel Currier was entitled "The Destruction of Tea at Boston Harbor"; the phrase "Boston Tea Party" had not yet become standard. Contrary to Currier's depiction, few of the men dumping the tea were actually disguised as American Indians
The Boston Tea Party arose from two issues confronting the British Empire in 1773: the financial problems of the British East India Company, and an ongoing dispute about the extent of Parliament's sovereignty over the British American colonies. The North Ministry's attempt to resolve these issues produced a showdown that would eventually result in revolution.
The Tea Party was the culmination of a resistance movement throughout British America against the Tea Act, which had been passed by the British Parliament in 1773. Colonists objected to the Tea Act for a variety of reasons, especially because they believed that it violated their constitutional right to be taxed only by their own elected representatives. Protestors had successfully prevented the unloading of taxed tea in three other colonies, but in Boston, embattled Royal Governor Thomas Hutchinson refused to allow the tea to be returned to Britain. He apparently did not expect that the protestors would choose to destroy the tea rather than concede the authority of a legislature in which they were not directly represented.
The Boston Tea Party was a key event in the growth of the American Revolution. Parliament responded in 1774 with the Coercive Acts, which, among other provisions, closed Boston's commerce until the British East India Company had been repaid for the destroyed tea. Colonists in turn responded to the Coercive Acts with additional acts of protest, and by convening the First Continental Congress, which petitioned for repeal of the acts and coordinated colonial resistance to them. The crisis escalated, and the American Revolutionary War began near Boston in 1775.

1789 engraving of the destruction of tea