Baseball: Playing the bottom of the 9th with home team leading

No, it isn’t. Modern era and Major League are not the same thing. The modern era begins in 1901. Major League baseball begins either in 1871, with the founding of the National Association, or 1876, with the founding of the National League. The 1876-1900 National League and the American Association are universally considered to be major leagues, and the Union Association and Players’ League are often added as well.

I stand corrected. Thank you.