quincentenary
noun
quin·cen·te·na·ry ˌkwin-sen-ˈte-nə-rē 
-ˈsen-tə-ˌner-ē
-ˈsen-tə-ˌner-ē especially British -sen-ˈtē-nə-rē
: a 500th anniversary or its celebration
quincentenary adjective
Example Sentences
Recent Examples on the Web Other quincentenary shows are set for England and France next year. 
John Hooper, WSJ, 31 Oct. 2018 Leonardo’s quincentenary isn't just an opportunity to reassess his genius but, with the 500th anniversary of Raphael’s death in 2020, the start of two years in which to ponder the Renaissance. John Hooper, WSJ, 31 Oct. 2018
John Hooper, WSJ, 31 Oct. 2018 Leonardo’s quincentenary isn't just an opportunity to reassess his genius but, with the 500th anniversary of Raphael’s death in 2020, the start of two years in which to ponder the Renaissance. John Hooper, WSJ, 31 Oct. 2018 Word History
Etymology
Latin quinque five + English centenary
First Known Use
1879, in the meaning defined above