Among my childhood memories, I recall few things more thrilling than the circus we attended when I was seven years old. It was in 1952 when the Ringling Brothers and Barnum and Bailey Circus came to Lexington. We looked forward to seeing “The Greatest Show on Earth” for weeks. From the time we parked in view of the huge tent in the distance, we kids were practically quivering with excitement. The show did not disappoint. We walked past cages of …