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
Field lacrosse two feet". Lacrosse is governed internationally by the 59-member Federation of International Lacrosse, which sponsors the World Lacrosse Championships once every four years. A former Olympic sport, attempts to reinstate it to the Olympics have been hampered by insufficient international participation. Field lacrosse is played professionally in North America by Major League Lacrosse. It is also played on a high amateur level by the National Collegiate Athletic Association in the United States, the Australian Senior Lacrosse Championship series, and the Canadian University Field Lacrosse Association. Lacrosse is a traditional Native American game. According to Native American beliefs, playing lacrosse is