the Pleasant Green area from an agricultural hamlet to an industrial community. D.C. Jackling established the Utah Copper Company, which later became Kennecott Copper Corp. In 1906, the company began constructing its Magna Mill. Jackling chose the name "Magna" from the Latin word meaning "great" or "superior".

Beginning in 1903, Magna saw a large influx of Greek immigrants, primarily prompted by coal mine strikes