Tercentenary 601 Words You Need to Know
/ˌtɜː.senˈtiː.nər.i/ (adj & noun)
Definition
the year or date which is the 300th anniversary of an important event in history or 300 years after a turning point in history, tercentennial, festival, celebration, commemoration
Example
The Boston Tercentenary Committee was reorganized at a meeting held for the purpose in the Old South Meeting House on January 30, 1930, by His Honor, James M. Curley, Mayor of Boston, who presided at the meeting. The basis of organization was the plan and personnel which had been agreed upon and started by Mayor Curley in approval of a recommendation from a committee of the Citizens’ Public Celebrations Association in November, 1925. Municipal preparations were mostly dormant during four years of an intervening municipal administration; but another citizens’ organization developed a comprehensive statewide plan for the 300th anniversary celebration or tercentenary of Massachusetts Bay.
Source: https://www.cityofboston.gov/
