A、It is the only traveling rodeo. B、It is the largest agricultural fair. C、It is the oldest annual rodeo. D、It was the first rod

Rodeos weren’t always the big entertainment shows that we see nowadays. The first ones were small contests started as a form of competition among people historically referred to as cowboys, although they did include both men and women. One duty of the cowboys was to guide herds of cattle from the grassy ranges into towns around the railroad lines where the cows were loaded onto trains. The cowboys would gather near these cow towns to compete for the artificial title as the best horse rider. They would demonstrate the riding skills they had learned as a matter of survival. The audience was composed mainly of other cowboys who watched the competitors critically since they knew what the events were all about.
   Rodeo contests took a different turn in the 1890s when organizers began to hold cowboy sports during yearly agricultural fairs. What was different was the audience. It consisted mostly of people who were unfamiliar with life on the range. They were amazed by the skills of the riders and the intelligence of the horses. Rodeos at agricultural fairs became so popular that ranchers and business people began to organize rodeos as independent events, separate from fairs. The organizers built large arenas and earned money by requiring spectators to pay for admission. One of the most notable rodeos of this type is still held annually in Wyoming. It’s called Frontier Days. While Frontier Days is not the first independent rodeo, it’s the oldest annual show, taking place each year since 1897.
23. What is the talk mainly about?
24. What can be inferred about the earliest rodeos?
25. Who was the audience of early rodeo contests?
26. What’s significant about Frontier Days?