bicentenary

BICENTENARY noun

[ C ] UK uk/ˌbaɪsenˈtiːnəri/ us/baɪˈsentəneri/ (US bicentennial, us/ˌbaɪsenˈteniəl/)
the day or year that is 200 years after an important event

двухсотлетие
the bicentenary of Schubert's birth bicentennial celebrations