For the first time since the founding of the sport, all clubs wore the same patch on their sleeves.
The Brews were no exception. Here we have the sleeve patch proudly displayed on the road flannels of player/manager Minor "Mickey" Heath:
National Baseball Hall of Fame in Cooperstown, New York. The location was chosen based on the report of a committee which in 1905 was charted to research the game's origin. Based on what appears to be little more than local hearsay, they decided that the game had been founded there by a young man who would go on to become a Civil War hero, Major General Abner Doubleday. The Hall of Fame chose an inaugural class of five, the finest sportsmen the game had to offer: Ty Cobb, Walter Johnson, Christy Mathewson, Babe Ruth and Honus Wagner.
The federal government did its part to honor the National Pastime's anniversary, issuing the first of what would be countless postage stamps celebrating the game. In this wire photo, Commissioner Landis is seen buying the first sheet:
I love those Centennial caps. Outstanding.Baseball's Czar Buys First Centennial Stamp
COOPERSTOWN, N.Y.—Judge Kenesaw Mountain Landis, High Commissioner of baseball, is shown, right, as he buys the first baseball centennial stamp from postmaster-general James Farley at Cooperstown, N.Y., as baseball's centennial was celebrated today, June 18th. Looking on, center, is Ford Frick, president of the National Baseball League. The stamp is the first baseball postage stamp ever issued by the government. After buying the stamp, Commissioner Landis dedicated the National Baseball Museum and Hall of Fame. Abner Doubleday invented baseball in 1839 at Cooperstown.
Event covers commemorating the Centennial, and featuring the same stamps Landis was photographed purchasing from Farley, were issued by many groups involved with the sport. Again, the Milwaukee Brewers did their part:
1939 Baseball Centennial event cover
Although the entire story behind the Centennial was almost certainly made out of whole cloth (Doubleday's connection to the game wasn't even suggested until 1907, a decade and a half after his death), the celebration remains a wonderful example of how baseball values its history.
Even the dubious parts.
(h/t: Bruce Menard and Uniwatch for Landis photo)