The 1857 Convention of Base Ball Players met for the first time on January 22 at Smith’s Hotel, the headquarters of the Knickerbocker Club, with the following clubs represented: Knickerbocker, Gotham, Eagle, Empire, Putnam, Baltic, Excelsior, Atlantic, Harmony, Harlem, Eckford, Bedford, Narrau, and Continental. The clubs elected Daniel Adams of the Knickerbockers as president of the convention and then appointed a rules committee, made up of one member of each represented club. This was perhaps the most important meeting in the history of baseball. It was a meeting of the baseball clubs of New York City, and unlike the previous meeting in 1854, it became the basis for a permanent organization that a year later would take the name the National Association of Base Ball Players (NABBP).

The “Laws of Base Ball”