Guarda Streamingcommunity. Four neighborhoods. Four churches. Four colors. Blue. Red. White. Green. A square. A ball. Two goals. Fifty minutes, there are no rules. During the third week of June, every year since 1580, four teams of twenty-seven men fight for victory in the arena of Santa Croce. Florence, June, 2013. Calcio storico fiorentino. The origin of football.