What is the setting of the story?

The novel was written "to induce kindness, sympathy, and an understanding treatment of horses" and focuses on the adventures of the horse Black Beauty and the theme of the mistreatment of horses. The novel is told in first person from Black Beauty's point of view and follows his journey and hardships that arise along the way.
The story is initially set in an English farm, where Black Beauty is living life as a colt with his mother. He is happy and carefree at the beginning, but soon he starts to experience traumatizing events, such as a brutal hare hunt and the pain of having to wear a saddle and bridle.
Black Beauty is then sold to Squire Gordon who owns an estate named Birtwick Hall. There Black Beauty is quite happy for three years, and, although not as carefree as before, he enjoys the company of the other horses.
After that, we follow Black Beauty to London, where he eventually becomes a cab puller. It is hard work but his owner, Jerry, is kind and considerate. The same, unfortunately, cannot be said for other horses Black Beauty encounters.
At the end, Black Beauty is finally allowed to enjoy retirement in the Blomefield's family country meadow.