Sometimes referred as "American-Style" professional wrestling, companies such as WWE, AEW, Impact Wrestling and ROH run touring professional wrestling events throughout the world. Matches are highly theatrical, with dramatic stories such as feuds between the athletes developed and performed as part of build-up and promotion for matches. Before its increase in popularity in the mid 1980s, professional wrestling in the United States was organised as a cartel of regional monopolies, known as "territories."