On March 4, 1886 — 1886 – The National League meets and adopts the stolen base and the four foot by seven foot pitcher’s box. But the NL retains seven balls for a walk and rejects the American Association’s rule giving a batter first base on a hit by pitch.

Sources –
Baseball Reference March 4
SABR Games Project
National Pastime March 4
Retro Sheet
Replay The Game

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