separate breeds. History Horses first arrived on the southeast North American mainland in 1521, brought by Ponce de León on his second trip to the region, where they were used by officers, scouts, and livestock herders. Later expeditions brought more horses and cattle to Spanish Florida. By the late 16th century, horses were used extensively in the local cattle business, and by the late 17th century the industry was flourishing, especially in what is now northern Florida and southern Georgia. The horses brought to North America by the Spanish and subsequently bred there included Barbs, Garranos, Spanish Jennets, Sorraias, Andalusians, and other Iberian breeds. Overall, they were relatively small and had physical traits distinctive of Spanish breeds, including short backs, sloping shoulders, low set tails, and wide foreheads. The early cattle drivers, nicknamed Florida crackers and Georgia crackers, used these Spanish-ancestry horses to drive cattle (eventually known as Florida Cracker cattle). The cowboys were said to have received their nickname from the distinctive cracking of their whips, though modern etymology actually traces the term to a mostly obsolete word for 'braggart' or 'loudmouth'. The name was transferred to both the horses they rode and the cattle they herded. Through their primary use as stock horses, the type developed into the Florida Cracker horse, known for its speed, endurance and agility. From the mid-16th century to the 1930s, this type was the predominant horse in the southeastern United States. During the American Civil War (1861–1865), both belligerents purchased large amounts of beef from Florida, and the Spanish horses bred there were highly desired as riding horses. During this time, there was also a continual introduction of new Spanish blood from Cuba, as horses were traded between the two areas. During the Dust Bowl (1930–1940), large western cattle were moved into Florida, bringing with them the parasitic screwworm. Cattle with this parasite needed to be treated frequently. The cowboys found that the Florida Cracker horses, bred for working smaller cattle, were not able to hold the western cattle. They replaced the smaller horses with American Quarter Horses. This resulted in the Florida breed almost becoming extinct. 20th century The breed's survival during the 20th century is owed to a few families who continued to breed the Cracker horse and kept distinct bloodlines alive. John Law Ayers was one such breeder; in 1984, he donated his herd of pure-bred Cracker horses to the