Anyone interested in becoming a professional umpire and becoming eligible to work in the minor leagues must attend one of the two umpire schools sanctioned by Major League Baseball.
Most technological advances in our life now come from serendipitous discoveries. That is a contraction of rocket technology and computer technology and atomic clock technology.
I have often said that just as the French revolution, for instance, understood itself through antiquity, I think our time can be understood through the French revolution. It is quite a natural process to use other times to understand your own time.