The Associated Press

War with Mexico in 1846 created a problem of arithmetic for New York's newspapers. Dispatches from the Rio Grande had to travel by steamer, horse relay, and the partly built telegraph line, and no single paper could pay for the chain alone. A handful of fierce competitors — among them the Sun, the Herald, and the Journal of Commerce — agreed to split the cost of a shared news boat and shared riders. The arrangement was meant to be temporary. It became the Associated Press.

The cooperative form was the point. Members were not customers but owners, each contributing its own local reporting to the pool and drawing on everyone else's, which meant a small paper in Iowa could print a dispatch from Washington or Paris on the strength of dues rather than bureaus. The AP incorporated in its modern nonprofit form in 1900, and its rivals United Press and International News Service competed on the same model until they merged as United Press International in 1958.

Telegraph economics pushed the writing toward plainness. Wire time was expensive and charged by the word, and the same story had to be usable by a Democratic paper in Georgia and a Republican one in Ohio, so AP copy stripped out adjectives, opinion, and regional coloring, and put the essential facts first. Historians argue about how much the telegraph alone produced the inverted-pyramid style and the ideal of objectivity, since editorial and commercial pressures pointed the same way. What is not in dispute is that terse, attributable, reusable prose became the American default.

The reach was the achievement. By the twentieth century AP copy ran in nearly every daily paper in the country, and later in broadcast, and its stylebook became the standard reference in American newsrooms and public relations offices alike. When a reader in one town and a reader two thousand miles away encountered the same wording about the same event, it was usually because a cooperative founded to share the cost of covering a war had never stopped sharing.