This famous procession—or cavalcata—was originally held in Sassari, Sardinia, Italy, more than 900 years ago to celebrate a victory over Saracen invaders. Today the procession consists of costumed groups from over 100 Sardinian villages. Wearing the traditional dress of their region, participants in the Cavalcata Sarda often ride through the streets in ox-drawn carts. After the procession is over, the celebration continues with singing and dancing.
Source: The Free Dictionary