Kentucky Common is one of the few beer styles native to the United States. The style originated in Louisville, Kentucky, and it first appeared in the mid-1800s with the influx of Irish and German immigrants who were familiar with brewing techniques.
They adapted brewing techniques with available ingredients—the mash was predominantly malt with an addition of corn. The result was a light, thirst-quenching beer with a relatively low alcohol content that was mostly enjoyed by the laboring class due to its low price.
The style was quite prominent until 1919 and the Prohibition era. Following Prohibition, Kentucky Common completely disappeared and was no longer produced. However, during the craft beer movement, the style has been brought back from obscurity. Modern Kentucky Common is usually light-amber in color, while the flavor is malty and subtly sweet, with just hints of caramel and bready notes.