Yesterday’s post was about America’s bicentennial in 1976. Something else that happened in 1976 was the National League’s Centennial. Several teams observed the Centennial in ways which people confused for observing the Bicentennial.
The Reds and Phillies and NL umpires also wore funny hats, but I couldn’t find any decent images of them.
Everybody but the Pirates would abandon the funny hats after the season. The following year the Pirates would add funny uniforms to go with the funny hats, and would continue to wear those up through the mid-1980’s.