Sesquicentennial Exposition
1926 CE.
Shown on the map at 39.909°, -75.173°.
The Sesqui-Centennial International Exposition of 1926 was a world's fair in Philadelphia, Pennsylvania. Its purpose was to celebrate the 150th anniversary of the signing of the United States Declaration of Independence, and the 50th anniversary of the 1876 Centennial Exposition.
Text from the Wikipedia article Sesquicentennial Exposition, licensed CC BY-SA 4.0.