The out-of-home media as we know it has a long history that dates back to the times before the terms advertising and media meant anything for the marketing teams. Long before marketing teams even existed, actually. The following infographic illustrates 5 steps of DOOH evolution. We tried to step away from the conventional timeline of billboards’ invention: looked deep into the centuries and found the true meaning of the out-of-home advertising. Hop on board and let the journey begin!