Which alternative name for the United States Semiquincentennial begins with “Bisesquicentennial”?

Bisesquicentennial is an alternative name for the United States Semiquincentennial, the America250 observance.

The term refers to a 250th anniversary. “Bisequicentennial” is formed from elements associated with two hundred and fifty, while “semiquincentennial” describes half of a five-hundred-year period. Both names identify the same national milestone.

The more familiar historical terms are different: a bicentennial marks 200 years, a sesquicentennial marks 150 years, and a centennial marks 100 years. These distinctions matter because the United States has held several major anniversary celebrations, including the Bicentennial in 1976.

The 250th anniversary is also sometimes called the sestercentennial or quarter millennium. Of these alternatives, Bisesquicentennial is particularly notable because it appears in discussions of the official 2026 commemoration, although “United States Semiquincentennial” and “America250” are more widely used.