Ambarvalia was a Roman agricultural fertility rite held at the end of May. In order to disperse evil, each farmer led his household and one of his animals in a procession around the boundaries of his fields. At the end of the rite the beast was sacrificed. During the procession, prayers would be made to the goddess 
Ceres.
Other Roman festivals and rites include the Lupercalia and the Saturnalia.
 
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