Okay

first, a nation is a large group of people living in a clear defined geographical area
sharing a government, language and culture. For example, Tanzania we share same language and government. Inorder for it to be known as a nation;
It should not be a colony.
it should be a sovereign state
it shoud not be part of another nation,etc
lets discuss symbols of a nation:
first a symbol is something that differentiates one thing from another. It can also be called a sign.
examples of national symbols are:
national flag, national song (national anthem), national currency,national festivals, presidential flag, court of arms, etc

WHAT ABOUT REALY

Sure

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