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For 90 years.

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Q: How many years has the Star Spangled Banner been the US's official national anthem?
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How many decades has the star spangled banner been the official national anthem?

9 decades the star spangled banner has been in the USA.


What is the title of US' national anthem?

The Star Spangled Banner is the US national anthem.


What is the name of USA's national anthem?

The national anthem of the USA is "The Star-Spangled Banner."


What year did the star spangled banner get declared a national anthem?

It was made official in 1931.


What is National Anthem of the Unites States?

The Star Spangled Banner


When Didi the star spangled banner become your national anthem?

The "Star-Spangled Banner" was adopted as the national anthem of the United States in 1931.


What is the America the beautiful national anthem?

The National Anthem of the US is The Star-Spangled Banner; America the Beautiful is a patriotic song of no official standing.


When did The Star-Spangled Banner officially become the United Statess national anthem?

It was made the official national anthem on March 3, 1931.


When was the law passed that made the star spangled banner the US official national anthem?

It was made official in 1931.


When did The Star-Spangled Banner officially become the national anthem?

It's been the official US anthem since 1931.


What is your anthem?

The Star Spangled Banner is the United States' national anthem.


When did the Star Spangled Banner song become the US national anthem?

On March 3, 1931, after 40 previous attempts failed, a measure passed Congress and was signed into law that formally designated “The Star-Spangled Banner” as the national anthem of the United States.