Horse racing in Great Britain is an equestrian performance sport, typically involving two or more horses ridden by jockeys (or sometimes driven without riders) over a set distance, for competition. It is one of the most ancient of all sports, as its basic premise – to identify which of two or more horses is the fastest over a set course or distance – has been unchanged since at least classical antiquity.
To read more go to:
https://antiquarianprintshop.com/blogs/news/history-of-equestrian-and-horse-racing-in-great-britain