The Tate Gallery is an art gallery or museum, that was originally officially titled the National Gallery of British Art, and was situated on Millbank in Pimlico, in London.
It was founded in 1897 by Henry Tate with money earned from his sugar refineries. It was initially a collection of British art, concentrating on the works of modern - that is Victorian - painters. It later expanded its collection to include foreign art, and so in the twentieth century became principally a gallery devoted to Modernism.
Since 2000 the 'British' and 'Modern' aspects of the collection have been housed in separate buildings, with the Modern collection moving to a converted power station on the south side of the Thames. The original gallery is now called Tate Britain to distinguish it from several other recently-opened "Tate Galleries" in England, and is a national gallery for British art from 1500 to the present day.