Franklin County was established on January 2, 1818, and formed from parts of
Gallatin and
White counties. It was named for
Benjamin Franklin. File:Franklin County Illinois 1818.png|Franklin County at the time of its formation in 1818 File:Franklin County Illinois 1839.png|The creation of
Williamson County in 1839 reduced Franklin to its current borders.
Coal mining Coal was mined in Franklin County as early as 1889, at the King Coal Mine, located at Township 5 South, Range 3 East. The high levels of gas found in Franklin County's coal deposits have resulted in mining disasters and explosions over the years. Between 1905 and 1968, there were eleven mine disasters. In 1905, the Zeigler No. 1 mine, located in
Zeigler, had an explosion that killed about fifty people. In 1917, an explosion in Old Ben Mine No. 11, located in
Christopher, killed 17. The worst explosion occurred in 1951, in the Orient No. 2 Mine in
West Frankfort, in which 119 people died. The
West Frankfort quadrangle of Franklin County is home to 17
coal mines, according to a 2004 report. ==Geography==