ECW was a brand of the American professional wrestling promotion World Wrestling Entertainment (WWE) that was established in May 2006 and discontinued in February 2010. Brands are divisions of WWE's roster where wrestlers are assigned to perform on a weekly basis when a brand extension is in effect. Wrestlers that were assigned to ECW primarily appeared on the brand's weekly television program, ECW. The brand was established as a relaunch of the former Extreme Championship Wrestling promotion, the assets of which WWE acquired in 2003.