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. Remaining crates that were passed down through generations after John Robinson retrieved it the morning after the Tea Party from the marshes of Dorchester Heights in what is now South Boston. Tea that was retrieved from the Boston Harbor and bottled up.