what is the national symbol of the country we are talking about?
The St George's Cross.
England
The St George's Cross has been the national flag of England since the 13th century. 
who wrote the english version of the treaty of waitangi William Hobson, with the help of his secretary James Freeman and the British Resident James Busby. when was this treaty first signed? 6 February 1840. and by whom? Representatives of the British Crown and Māori chiefs from the North Island of New Zealand. what is its importance? It established a British Governor of New Zealand and gave the Māori the rights of British subjects. what are the principles of this treaty? One of the principles deals with  the exchange of sovereignty by the Māori people for the protection of the Crown. the person who wrote the english version of the above mentioned treaty, who was he? A British Royal Navy officer and the first Governor of New Zealand. where was he born? In Waterford, Ireland. when did he join the above mentioned navy? 25 August 1803. what is the place where he born derive from? From  Old Norse , meaning "ram (wether) fjord". how is the climate there? A maritime temperate climate. It is mild and changeable with abundant rainfall and a lack of temperature extremes. what is the most popular sport of the place mentioned? Rowing, athletics and football. do they have any club for the last mentioned sport? Several including Waterford FC, Benfica W.S.C. and Johnville F.C.. earlier you mentioned a term from which this place derive its name, what is it? It was a North Germanic language. has any other languages influenced from this dialect? Yes, Old English. where is this influenced dialect commonly spoken? It was spoken in England and southern and eastern Scotland. with whom the first country share its borders? Wales and Scotland.
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England [SEP] National symbols
The St George's Cross has been the national flag of England since the 13th century. Originally the flag was used by the maritime Republic of Genoa. The English monarch paid a tribute to the Doge of Genoa from 1190 onwards so that English ships could fly the flag as a means of protection when entering the Mediterranean. A red cross was a symbol for many Crusaders in the 12th and 13th centuries. It became associated with Saint George, along with countries and cities, which claimed him as their patron saint and used his cross as a banner. Since 1606 the St George's Cross has formed part of the design of the Union Flag, a Pan-British flag designed by King James I.