MCMI=1901

The American League came into being. There were no "Damn Yankees" to worry about, until 1912 when there was a name change from Highlanders. That Franchise was in Baltimore as The Orioles, which may explain why DFYankees are for the birds anyway(LOL). The Team in Milwaukee, the Brewers, not owned by anyone named Selig, moved in 1902 to St Louis and later to Baltimore, in 1954:

Baseball's Game of Musical Chairs, called Franchise Shifts, began in the Early 1950s;

It's The Game we know and love/hate, today;

Later, Gators!