Flag of Great Britain — is a blue rectangular flag , crossed by two diagonal red stripes with white outline . Located on top of the red cross lines of greater width and with a white outline . Parties webs made in the ratio 1:2. The correct name of the flag is pronounced " Union Flag ", but much more common to hear the name " Union Jack ." According to one version , the word " Jack " in this case can be considered a tribute to marine rules under which they call their flag sailors on a ship of war .Officially, the British flag was in eighteen hundred first year. It is a symbol of the different parts of the country , the combined power of the empire.Their individual value have absolutely all the details of the flag. The cross in the center of the flag , called the cross of St. George, is a symbol of England because that is what St. George is the patron saint of her . White saltire , known as the cross of St. Andrew, represents Scotland on the flag of which also appear white cross , but only on a blue cloth , and moved up the flag of Great Britain . Over time, the blue color was replaced by blue. The diagonal red cross , called the cross of St. Patrick, Ireland and symbolizes located on top of a white diagonal cross.First English and Scottish flags appeared in the thirteenth and fourteenth centuries. After the unification of the two kingdoms into one thousand and sixty third year , first spotted the Union flag , which depicted two crosses — red and white St. Andrew St. George , illustrated on a blue background.In the mid- seventeenth century by Oliver Cromwell abolished the royal flag, but eleven years later it was restored along with the monarchy . Initially the " Union Jack " is a maritime flag. According to the order of Charles James I, the royal flag was raised only on vessels belonging to the Navy . In the UK, is still considered a criminal offense uplifting " Union Jack " in the civil courts .The present appearance of the royal flag acquired after Ireland acceded to the state and added to the image of the flag of Saint Patrick's cross .