tercentenaries
ter-cen-te-na-ries
noun
The three hundredth anniversaries or celebrations of a significant event.
"The city marked several tercentenaries of its founding."
Thesaurus
Synonyms: tercentennial, tercentenary, triennial
ter-cen-te-na-ries
The three hundredth anniversaries or celebrations of a significant event.
"The city marked several tercentenaries of its founding."
Synonyms: tercentennial, tercentenary, triennial