NWA
On July 14th, 1948, the National Wrestling Alliance is formed by Professional Wrestling promoters throughout North America in order to avoid stringent U.S. anti-trust laws. Although run as separate "territories," promoters agree to work with each other under the NWA banner. The first President is P.L. "Pinkie" George, while Orville Brown, the reigning Midwest Wrestling Association World Heavyweight champion, is recognized as the first NWA World champion, as the MWA is absorbed into the NWA. 
On July 20th, 1948, Lou Thesz defeats "Wild" Bill Longson in St.Louis to capture the National Wrestling Association World Heavyweight title.
National Wrestling Alliance is one of the oldest and greatest wrestling promotion that still spands throughout the world today.
NWA Alabama
NWA Anarchy
NWA Australia
NWA Battlezone
NWA Bluegrass
NWA Blue Ridge
NWA California
NWA Cananda
NWA Central States
NWA Championship Wrestling
NWA Cyberspace
NWA East
NWA ECCW
NWA Florida
NWA Hawaii
NWA Ireland
NWA Kansas
NWA Main Event
NWA Mid-America
NWA Mid-Atlantic
NWA Mid-South
NWA Mid-West
NWA Missouri
NWA NAWA
NWA New England
NWA New Japan
NWA New South
NWA NY/NJ
NWA No Limits
NWA Oklahoma
NWA Pacific Northwest
NWA Pro Wrestling Evolution
NWA Southwest
NWA Sunray
NWA TNA
NWA Tri-State
NWA UK
NWA Universal
NWA Upstate
NWA Virginia
NWA Wildside
NWA Wisconsin
NWA Quebec