A woman wonders whether her mother was used as an infant as part of the incubator expedition at the 1933 World's Fair in Chicago. Also, a look at the Siegmund Lubin Studios, which made silent films in Philadelphia. And lastly, a closer look at a Navajo rug which may have a taboo symbol on it of a man in a feathered headdress holding lightening bolts.
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Ready to Watch History Detectives, Season 7, Episode 4?