The Father of the Yield
The sign on the highway that tells you to yield to oncoming traffic is not as old as you might th... ...ma police officer Clinton Riggs came up with the " yield " sign in 1950, which spread from its birthplace i... ...a trooper that Riggs conceived the idea of the “ yield â€...
https://www.neatorama.com/2010/12/09/the-father-of-the-yield/
