MLB makes history by naming its first black and Latino-born umpire

1939. Yankees skipper Joe McCarthy pencils a name that isn't Lou Gehrig into his lineup card for the first time since 1925. Gehrig volunteered to take the day off for the good

Baseball's All-Time Mexican-Born Team - Vintage Detroit Collection

History of baseball in the United States - Wikipedia

Milt Pappas, Cagey All-Star Traded for Hall of Famer, Dies at 76 - The New York Times

How Jorge Pasquel broke baseball's color barrier — in Mexico - Los Angeles Times

Art Williams made history as 1st Black umpire in National League

How did the Ray Chapman baseball complex get its name?

MLB makes history by naming its first black and Latino-born umpire crew chiefs

TIL Ron Luciano, a popular and eccentric major league umpire from 1969-1979, refused to call balks. I never called a balk in my life. I didn't understand the rule. : r/baseball