Hungary
The flag of Hungary is a horizontal tricolor of red, white and green. In this exact form, it has been the official flag of Hungary since 23 May 1957. The flag’s form originates from national republican movements of the 18th and 19th centuries, while its colors are from the Middle Ages. The current Hungarian tricolor flag is the same as the republican movement flag of the United Kingdom (used since 1816) and the colors in that form were already used at least since the coronation of Leopold II in 1790, predating the first use of the Italian Tricolor in 1797.