Initially; Persons chiseled them in stone or metal. Afterwards; people have handwritten and dispersed this news in public boards or examine them from scrolls by town criers. Established somewhere all around 202 BC; these ended up “palace reports or imperial bulletins” distributed by The federal government and meant for bureaucrats. https://www.dailypioneer.com/2015/state-editions/bhagat-singh-museums-2nd-phase-construction-to-start-from-march.html