1. the 200th anniversary of a significant event

1. relating to or marking a 200th anniversary

Examples

• The university celebrated its bicentenary with a grand ceremony.
• The bicentenary of the Declaration of Independence was marked nationwide.
• They organized bicentenary events throughout the year.
• The bicentenary celebration included historical reenactments.
• The museum opened a special bicentenary exhibition.
• The town’s bicentenary committee planned various festivities.