It began in 1876 when The National League (NL) was established. The American League (AL) was elevated from the Minor League in 1900 to join the Major League.

• 它始于1876年，当“国家职棒联盟”，即国联（NL）成立的时候。“美国职棒联盟”，即美联（AL）在1900年从小联盟升级上来加入。