in Lambeth near Westminster Bridge. He teached in the morning and
   performed his horse riding tricks in the afternoons and evenings in a
   ring. He choose the ring shape as riding in tight circles created
   centrifugal forces which helped with the riding stunts where he stood
   on the horses back. Initially the ring had a diameter of 64 feet but
   this was reduced to 42 feet which has become the international
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   were not enough to bring in the customers so he added extra
   attractions such as a Clown (Mr Merryman), acrobats, tightrope
   walkers, and jugglers. These performers found that the circus ring
   suited their acts and the audience appreciation was greater.
   Astley fenced in his circus ring, and added seating and some roofing
   and quickly learned the art of advertising his Amphitheatre Riding
   ring. A former employee called Charles Hughes set up a rival
   establishment in 1782 short distance down the road, which he called