The Boston Tea Party (initially referred to by John Adams as "the Destruction of the Tea in Boston") was a political protest by the Sons of Liberty in Boston, on December 16, 1773. The demonstrators, some disguised as American Indians, destroyed an entire shipment of tea sent by the East India Company, in defiance of the Tea Act of May 10, 1773. They boarded the ships and threw the chests of tea into Boston Harbor, ruining the tea. The British government responded harshly and the episode escalated into the American Revolution. The Tea Party became an iconic event of American history, and other political protests such as the Tea Party movement after 2010 explicitly refer to it.