2000 – The new World Umpires Association agrees to consolidate all umpires as part of an interim agreement with the commissioner’s office. The umpires will merge into a single unit reporting directly to Major League Baseball this season, after being employed by either the National League or the American League since the latter’s creation in 1901.

On March 20, 2000 — 2000 – The new World Umpires Association agrees to consolidate all umpires as part of an interim agreement with the commissioner’s office. The umpires will merge into a single unit reporting directly to Major League Baseball this season, after being employed by either the National League or the American League since the latter’s creation in 1901.

Sources –
Baseball Reference March 20
SABR Games Project
National Pastime March 20
Retro Sheet
Replay The Game

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