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I can't answer it, but I found an ancient newspaper article from when American football officials 1st started using hand signals. It is clear from this that (1) only a small number of signals were used to begin with, (2) very few of these have remained the same to the present (touchdown being one that did, not surprisingly, and pass interference as well; not so with touchback and clipping, for example), and (3) many more have been added since then. There must be some source that explains their origin, which the ancient article really does not.
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What are the 25 referees hand in badminton?
handjob
Where is sound used in sports?
Referees in football, basketball and soccer use a whistle for various signals.
Is hand signals preferable over turn signals?
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Use hand signals.
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What are fire tender operational signals?
Hi Im Mike , Training Officer For ECFRS Here Are The Signals Open + Close Hand Repeatly :Water On Close Hand :Water Off There Is The Main Signals For Hoses
What are hand signals in volleyball with pictures?
Please visit the link in the "Related Links" section It has the official hand signals and rules from the FIVB Volleyball governing body
