What Italian professional football club, founded in 1899, was the first to establish an ultras group?
Fossa dei Leoni The Fossa dei Leoni, also referred to by the acronym FdL, was an association of ultras supporters of Italian professional football club Associazione Calcio Milan. Established in 1968, it was the first ultras group to form in Italy.
1897–98 Swiss Serie A The first Swiss football championship was held 1897–98. The championship was not organized by the Swiss Football Association (SFA; founded in 1895) and is therefore considered as unofficial. Only four of the clubs competing were members of the SFA; FC Château de Lancy, Grasshopper Club Zürich, Neuchâtel FC and La Villa Ouchy). The series A was divided into three regional groups, group A in the north, group B the district around Lausanne and group C district of Genève). The winner of each group qualified for the finals.