Union Jack

Jack is the navy terms, refers to the hanging in the prows flags, British naval ship capital suspension flag, hence its name。The issue of whether it is acceptable to use the term "Union Jack" is one that causes considerable controversy. Although it is often asserted that "Union Jack" should only be used for the flag when it is flown as a jack 。The word Jack may have come from the name of the James VI, King of Scots who inherited the English crown, causing the flag to be designed, that is Jac from Jacobus, Latin for James. The size and power of the Royal Navy internationally at the time could also explain why the flag was nicknamed the "Union Jack" considering the navy was so widely utilized and renowned by the United Kingdom and Commonwealth countries it is possible that the term "Jack" did occur due to its regular usage on all British ships using the "Jack Staff" (a flag pole attached to a ship on the bow)。