One hundred second anniversary.
a bicentennial
a bicentennial
The word you're looking for is "centenary," which refers to a period of one hundred years. It can also denote the 100th anniversary of an event. Additionally, "cent" itself, derived from the Latin "centum," means one hundred.
A 100th wedding anniversary is called a "diamond" anniversary.
bicentenary
A three-hundred-year celebration is called a tricentennial.
bicentennial
A one hundredth anniversary is called a centenary,centennial
A period of 600 years is often referred to as a sexcentenary.
One hundred second anniversary.
Two hundred year anniversary, but that's not "one word".
A 70th Anniversary is called a Platinum.
A hundred year anniversary is called a centennial or a centenary.
No, there is only one for a full one hundred year-period, the 'centennial'.
It is called silver or silver year.
a bicentennial