Box lacrosse The roots of indoor lacrosse are obscure, but its invention has been attributed to one Paddy Brennan, a field lacrosse player and referee from Montreal, who, being annoyed by the constant slowing of play from balls going out of bounds in the field game, experimented with indoor games at the Mount Royal Arena during the early 1920s. Joseph Cattarinich and Leo Dandurand, owners of the National Hockey League's Montreal Canadiens in the 1920s, led the participating ice hockey arena owners to introduce the new sport. In the 1930s, 6 v 6 indoor lacrosse came to be played in the summer
Box lacrosse the Philadelphia Box Lacrosse Association, and the Metro Area Box Lacrosse League. The first world championship of box lacrosse, "The Nations in 1980", was staged in several arenas in British Columbia, Canada in July 1980 involving teams representing the United States, Australia, Canada East, Canada West and the Iroquois Nationals. Canada West (Coquitlam Adanacs) defeated the Iroquois in the nationally televised world championship game from Pacific Coliseum in Vancouver. This was the first time in history that Indigenous peoples of the Americas people represented themselves in an athletic world championship competition. The second international box lacrosse tournament was held in