One hundred years ago, August 1919, optimism prevailed in Northeast Georgia as World War I had ended a few months earlier, soldiers were either home or on their way, and new enterprises were energizing communities.Here are some of the things happening back then:More automobiles were running the roads, and gas stations were needed to accommodate them. D.P. O’Dell was building a “filling station,” as they were once called, on South Main Street in Gainesville.