“The Power of Many Giants” at the 1876 Centennial Exposition

Amid the pageantry and grandeur of the Philadelphia Centennial Exposition’s opening ceremony, one event towered above all others. On May 10, 1876, thousands of visitors crowded into Machinery Hall to watch President Ulysses S. Grant and Emperor Dom Pedro II of Brazil climb atop a gigantic Corliss steam engine. On a platform on top of the 45-foot-tall machine, the two heads of state pulled two...
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Fathers of Modern Photography: The Brothers Langenheim

Two brothers – German immigrants who left their native Brunswick and chanced upon one another in Philadelphia several years later – have been praised by scores of scholars and histo­rians as the “Fathers of Mod­ern Photography” for their technical contributions to the first twenty years of American photographic history. William and Frederick Langenheim achieved...
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