The first private research atomic reactor opened in Chicago, Illinois, US.
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Franz Ferdinand and his wife Sophie were assassinated, ultimately causing World War I.
Fifty-one concealed immigrants were found dead inside an abandoned truck on the road in San Antonio, Texas.
The musical ''Dreamgirls" was performed for the first time at the Ambassador Theatre, New York City.
The first Hughes Communications Galaxy satellite was launched into orbit.
The third-strongest recorded earthquake in US history happened in Southern California.
