"ABC [Associated Booking Corp.] was formed in 1940 by Joe Glaser and Louis Armstrong."

http://www.associatedbooking.com/ab.html

From wiki page: "The Associated Press (AP) is an American multinational not-for-profit news agency based in New York City, organized in 1846. It operates as a cooperative, unincorporated association. The AP is owned by its contributing newspapers and radio and television stations in the United States, all of which contribute stories to the AP and use material written by its staff journalists."