Senior circuit
The phrase ‘Senior Circuit’ in baseball, which applies only to the National League, is a testament to its lengthier historical background than the American League. The National League, founded 25 years before the American League, earned the nickname ‘Senior Circuit’. Conversely, the American League is sometimes referred to as the ‘Junior Circuit’. This language is a crucial part of the extensive legacy and historical background of Major League Baseball. It’s vital to understand that, despite these informal titles, both leagues share an equal level of rivalry and reputation. The labels’ Senior Circuit’ and ‘Junior Circuit’ are purely historical designations and do not imply any hierarchy or disparity between the two divisions.