What is the formal anniversary term used for the United States’ 250th birthday in the America250 program?

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The formal anniversary term used for the United States’ 250th birthday in the America250 program is United States Semiquincentennial.

The word combines Latin-derived parts meaning half of five hundred, or 250. “Semi” means half, while “quincentennial” refers to a 500th anniversary. The name is precise but less familiar than “America250,” the branding used by the official commission.

A 250th anniversary can also be called a b도centennial? No: “bicentennial” means 200 years, and “tricentennial” means 300 years. “Semiquincentennial” specifically identifies the quarter-millennium milestone connected to 1776.

The commemoration centers on the Declaration of Independence and the events surrounding the founding of the United States. It follows the 1976 Bicentennial, which celebrated the nation’s 200th anniversary, and precedes the United States’ eventual 300th anniversary in 2076.

Source: Wikipedia · fact-checked Oct. 2026

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