We are celebrating the bicentenary anniversary of the planting of the oak tree
A Bicentenary is a celebration of 200 years (like a 200th year birthday or anniversary. Without more specific information this applies to any celebration of 200 years eg. the Australian bicentenary, the American bicentenary etc.
Bicentenary Medal of the Linnean Society was created in 1978.
A bicentennial marks 200 years.
Bicentenary Medal of the Royal Society of Arts was created in 1954.
misinbannery
Australia celebrated its bicentenary in 1988 as the date 200 years after the arrival of the First Fleet.Much was also made of the bicentenary, in 1970, of James Cook's charting of the east coast and claiming of the eastern half of Australia for Great Britain.
bicentenary
200 years.
200 years
bicentennial
1988 we have the bicentenary of the landing of the first fleet...