YEAR	MILESTONE
1957	The New Jersey state tournament is inaugurated as a four-team, single-elimination tournament. The state is organized into sixteen districts numbered 1 through 16 from north to south throughout the state. By the mid-1980s, New Jersey expanded to 19 districts in size.
1981	District 3 is dissolved, and its remaining leagues are placed into District 4.
1985	District 3 is re-formed in Cumberland and Salem Counties as a spin-off from District 15.
1986	The state tournament switches to a double-elimination format.
1989	District 20 (Sussex and Warren Counties) is formed as a spin-off from District 1.
1995	District 21 is created in the Philadelphia area as a spin-off from District 14.
2001	New Jersey is assigned to the Mid-Atlantic Region as part of Little League Baseball's expansion of the World Series from eight to sixteen participants.
2002	The state tournament uses a round-robin format before again returning to a double-elimination format the following year.
2006	District 9 (Essex and Union Counties) is dissolved. The remaining District 9 leagues are placed in adjoining districts, including Districts 1, 7, 8, 10, and 17.

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