advertising was the first specialty to become fully established

By late 19th century when the advertising agency of N.W. Ayer & Son was founded. Ayer and Son offered to plan, create, and execute complete advertising campaigns for its customers. By 1900 the advertising agency had become the focal point of creative planning, and advertising was firmly established as a profession. Around the same time, in France, Charles-Louis Havas extended the services of his news agency, Havas to include advertisement brokerage, making it the first French group to organize. At first, agencies were brokers for advertisement space in newspapers. N. W. Ayer & Son was the first full-service agency to assume responsibility for advertising content. N.W. Ayer opened in 1869, and was located in Philadelphia.