quatercentenary

Từ điển LongMan Dictionary

quat‧er‧cen‧te‧na‧ry/ˌkwætəsenˈtiːnəri $ ˌkwɑːtərsenˈten-/ noun (plural quatercentenaries) [COUNTABLE]
[date : 1800-1900; Language : Latin; Origin : quater 'four times' English centenary]
the day or year exactly 400 years after a particular event
quatercentenary of
　 ▪ the quatercentenary of Shakespeare’s birth