The "United Kingdom of Great Britain and Ireland" (abbreviated as United Kingdom & known as "the UK") replaced the Kingdom of Great Britain when the parliaments of Great Britain and Ireland each passed an Act of Union, uniting the two kingdoms in 1801; it existed until 1931 where it changed to today's name, the "United Kingdom of Great Britain and Northern Ireland" (see the place for details) The Victorian Era had the House of Hanover in Germany and began in 1837 after the Georgian Era ended. In 1917 the House was changed to the House of Windsor because of anti-German sentiment in the United Kingdom during World War I. The Victorian Era ended in 1939 with a change to today's Windsor Era