What anniversary will follow the United States Semiquincentennial in 2076?

The United States Tricentennial will follow the United States Semiquincentennial in 2076.

A tricentennial marks 300 years. Since the Declaration of Independence was adopted in 1776, adding 300 years places the next three-century anniversary in 2076. The 2026 America250 celebration marks the 250-year point between the 200th and 300th anniversaries.

The names of these milestones use Latin- and Greek-derived number elements. Centennial means 100 years, bicentennial means 200, sesquicentennial means 150, semiquincentennial means 250, and tricentennial means 300.

The 2076 anniversary is also notable because it will be 50 years after the 2026 semiquincentennial. Historical anniversary planning often looks ahead in these round-number intervals, linking national memory across generations.