In UK in 1977 the Queen celebrated Silver Jubilee (1952 + 25)
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∙ 10y agoAn 150 year celebration is called a Sesquicentennial celebration
A 100 year celebration is called a centennial celebration.
It is called a "centennial celebration"
60 year celebration
An 150 year celebration is called a Sesquicentennial celebration
55th wedding celebration is Emerald.
Centennial
It is called Centenary.
An Emerald anniversary
Diamond Jubilee
It is a century or a centennial
Diamond Jubilee