* Are you asking about the history of horses? (Where they originated, how they were domesticated, their role in history, etc.)
* Are you asking about a specific horse? (Do you have a horse in mind, or are you talking about a horse in a story?)
* Are you asking about a specific event? (For example, did a horse get injured, or did something happen to a horse in a race?)
The more information you give me, the better I can understand your question and provide a helpful answer.