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Language English Remove constraint Language: English Rights Public Domain Mark 1.0 Remove constraint Rights: Public Domain Mark 1.0 Subject Biology Remove constraint Subject: Biology

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    • 1961

    Chemistry sets reached their heyday in the 1950s, but production of them began in the United States during World War I. Playing with a toy chemistry set inspired many a boy to become a chemist, and not until the late…

    • 1960

    Chemistry sets reached their heyday in the 1950s, but production of them began in the United States during World War I. Playing with a toy chemistry set inspired many a boy to become a chemist, and not until the late…