can you mention some of the features of their symbol?
The shamrock, a type of clover, has been a national symbol of Ireland since the 17th century
Republic of Ireland
The shamrock, a type of clover, has been a national symbol of Ireland since the 17th century when it became customary to wear it as a symbol on St. Patrick's Day. 
who is william iii of england? sovereign Prince; Stadtholder; King of England, Ireland and Scotland has he won any battle? Yes - Battle of the Boyne why was 1672 the disaster year? In the Franco-Dutch War and the Third Anglo-Dutch War the Netherlands was invaded by France and its allies. when was the first war mentioned above fought? 1672 to 1678 did any negotiation happen in or after this war? Yes - peace negotiations who was the battle fought between, the one that the king won? The forces of King James II of England and Ireland, VII of Scotland; versus the forces of King William III where did it take place? River Boyne close to the town of Drogheda, Republic of Ireland what is the climate like in the country mentioned above? Temperate oceanic climate
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Republic of Ireland [SEP] State symbols
The state shares many symbols with the island of Ireland. These include the colours green and blue, animals such as the Irish wolfhound and stags, structures such as round towers and celtic crosses, and designs such as Celtic knots and spirals. The shamrock, a type of clover, has been a national symbol of Ireland since the 17th century when it became customary to wear it as a symbol on St. Patrick's Day. These symbols are used by state institutions as well as private bodies in the Republic of Ireland. The flag of Ireland is a tricolour of green, white and orange.