Celebration of the Horse Day is observed every July 15 in the United States, highlighting the significant economic, cultural, and historical contributions of horses. This day encourages individuals to appreciate the beauty of horses, learn about their impact on society, and support equine welfare initiatives. Common customs include visiting local stables, watching horse-themed movies, and volunteering at horse rescues. Retailers often participate by offering special deals on equestrian supplies, while organizations like the ASPCA promote their horse protection programs. Social media engagement is encouraged through sharing photos and stories related to horses, fostering a sense of community among horse enthusiasts.