In the beginning; persons chiseled them in stone or metal. Later; individuals have handwritten and dispersed this news in general public message boards or study them from scrolls by town criers. Established someplace close to 202 BC; these had been “palace reports or imperial bulletins” distributed by The federal government https://www.dailypioneer.com/2014/state-editions/mussoorie-traffic-woes-hit-tourists-weekend-getaway.html