The 1876 American Centennial Exhibition, held in Philadelphia, showcased innovations ranging from steam engines to the telephone to soda water.
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Hulton Archive/Getty Images
How America has celebrated milestone birthdays, from world fairs to the World Cup
Two founding fathers died on America's 50th birthday, which was marked with toasts and parades. Over time, anniversary celebrations became more extravagant — and more controversial.
2,485 words~11 min read
