From Ohio History Central
The All American Quarter Horse Congress began in 1967. The Ohio Quarter Horse Association founded this event and continues to sponsor it to this day. The congress's purpose is to showcase the American Quarter Horse. The organizers also hope to educate people about this mammal and the proper way to show it at professional events. While the Ohio Quarter Horse Association does permit other breeds of horses to participate in the congress, the event's main purpose is to showcase the American Quarter Horse. The All American Quarter Horse Congress takes place for three weeks each October at the Ohio Expo Center in Columbus, Ohio.
The Ohio Quarter Horse Association estimates that 650,000 people attend the congress each year. This event rivals the Ohio State Fair in attendance. The participants of the All American Quarter Horse Congress also bring an estimated 110 million dollars to the Central Ohio economy. More than 16,000 horses enter various competitions each year, and approximately 8,500 of these mammals reside on the Expo Center grounds during the Congress.