World Extreme Cagefighting (WEC) was a mixed martial arts promotion that showcased fighters in a cage setting. Founded in 2001, it gained popularity for its focus on lighter weight classes, featuring athletes competing in divisions such as featherweight and bantamweight. In 2010, WEC was acquired by Ultimate Fighting Championship (UFC), leading to its eventual merger. The promotion was known for its exciting fights and helped elevate the sport's profile, contributing to the growth of mixed martial arts globally.