September 1, 1863
The Action at Devil’s Backbone during the Civil War was fought in Greenwood (Sebastian County) between Union and Confederate forces. The conflict lasted three hours before Union forces prevailed and Confederate soldiers retreated, leaving their dead behind. Union troops moved on to Fort Smith to take control of the fort there. The battlefield is now one of several historical attractions of Greenwood, which has boomed in recent years, more than doubling in size between 1990 and 2010.