1. 200th anniversaries of significant events
Usage: plural of bicentenary

Examples

• The museum is planning special exhibitions for several bicentenaries this year.
• Many cities celebrated bicentenaries of their founding with parades and festivals.
• The library has a collection of books about American bicentenaries.
• Historians are preparing for the upcoming bicentenaries of several important battles.
• The committee organized events to commemorate the bicentenaries of famous authors’ births.
• Schools often create special programs for national bicentenaries.