Short answers, pulled from the story.
Four men gathered in an office in Canton, Ohio on the 20th of August 1920 to found the American Professional Football Conference. Ralph Hay and Jim Thorpe represented the Canton Bulldogs while Jimmy O'Donnell and Stan Cofall spoke for the Cleveland Tigers.
Fourteen founding teams decided to form the American Professional Football Association during a second meeting in Canton on the 17th of September 1920. Participants included original Ohio League clubs plus teams from Illinois, Indiana, New York, and Michigan.
The Akron Pros ended the season as the only undefeated team in the Association and were awarded the Brunswick-Balke Collender Cup on the 30th of April 1921. This decision arose with controversy among league members but was confirmed by a vote of team owners held during winter after the season ended.
Plans were made by these four clubs to play one another home and away creating a uniform six game schedule for each team initially. The Decatur Staleys and Canton Bulldogs played the most games in the season with thirteen contests each while the Muncie Flyers played only one game which was the fewest for any team.
Published record books listed the 1920 championship as undecided for many years until the NFL discovered this early vote awarding Akron the title in the 1970s. Historical rediscovery occurred when researchers found evidence of the original voting process decades later restoring recognition of Akron Pros as first champions despite long period of official uncertainty.