I just ran across this Smithsonian piece from 2017. Fascinating:
It was the breaking news to end all breaking news—the fledgling British colonies of North America were committing treason and declaring independence. But in an era long before smartphone push alerts, TV interruptions and Twitter, breaking news broke a lot slower. How slow, though? Last year, a Harvard University project mapped how quickly the Declaration of Independence spread through the colonies based on newspaper archives.
A fascinating animation breaks down the dissemination of the news. The full text of the Declaration of Independence was first published in the Pennsylvania Evening Post on July 6 in Philadelphia, where the Continental Congress had been meeting to compose it. Other Philadelphia newspapers reprinted the document, including a German newspaper that translated it for the area’s large immigrant population, in the following days. (The same German-language newspaper also holds bragging rights for being the first paper to report on the Declaration of Independence.)
Read the rest here.