The name "Tea Party" is a reference to the Boston Tea Party of 1773—a protest by American colonists against various acts by the British Government which, among other things, attempted to establish a monopoly on the importation of tea into the colonies by giving a cut on re-importation tax imposed on the East India Company. Tea Party protests have invoked themes, images, and slogans similar to those used during the pre-revolutionary period in American history. I couldn't understand the bold part. What is that re-importation tax? Please guide me. Thanks.