What was the name of Philadelphia’s 1926 event marking 150 years since the Declaration of Independence?

Philadelphia’s 1926 event marking 150 years since the Declaration was the Sesquicentennial Exposition.

A sesquicentennial marks 150 years, so the exposition commemorated the anniversary of the Declaration of Independence adopted in Philadelphia in 1776. The event was held in South Philadelphia and included exhibition buildings, amusement areas, displays, and celebrations of American history and industry.

The exposition followed Philadelphia’s much larger Centennial Exposition of 1876. It also preceded the nationwide bicentennial celebrations of 1976, making it part of a sequence of major anniversary observances connected with the founding era.

The name is often confused with “centennial,” which means 100 years, or “bicentennial,” which means 200 years. “Sesquicentennial” specifically means 150 years.