A two hundredth anniversary is called a bicentennial. This term is used to commemorate the 200th year of an event, such as the founding of a city or the signing of a significant document. Celebrations often include various activities and events to honor the occasion.
bicentennial
Bicentennial
centenary, centennial
centennial, centenary
centenary, centennial
A one hundredth anniversary is called a centenary,centennial
bicentennial
centenary centennial
Bicentennial
centenary, centennial
Sesquicentennial
The one hundredth anniversary of something.
centennial, centenary
We celebrated the two hundredth anniversary of our country with many bicentennial events and parties.
Centaped
centenary, centennial
A century or a centennial