A bicentennial is the 200th anniversary of anything. For example, the American Bicentennial was 1976, the bicentennial of Abraham Lincoln's birth is 2009.
Bicentennial or bicentennially
Bicentennial
Bicentennial means "200th anniversary".
Bicentennial means 200 years old. We celebrated our country's bicentennial last year.
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Bicentennial Tower was created in 1996.
A bicentennial celebrates 200 years of something.
The duration of Bicentennial Minutes is 60.0 seconds.
We celebrated the bicentennial anniversary of the birth of our country
The Bicentennial Man was created in 1976-02.
Australia celebrated its bicentennial year in 1988.