Floorball
The origin of floorball is disputed, with Sweden, Canada, and the USA all claiming to have invented the sport. Regardless, floorball has been most popular in Sweden since the 1970s. Its popularity quickly spread to Finland and Switzerland, but with different rules. For example, in Switzerland a goalkeeper was allowed to use a stick.  In 1986, the International Floorball Federation (IFF) was founded and rules became the same.