To the Chicago World's Columbian Exposition in the United States, where he was able to confer with other researchers in the field
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To the Chicago World's Columbian Exposition in the United States, where he was able to confer with other researchers in the field
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-17 from Wikipedia. The archived copy is preserved so this citation survives link rot.