 When the stories illuminate Roman religious practices, they are more concerned with ritual, augury, and institutions than with theology or cosmogony.The study of Roman religion and myth is complicated by the early influence of Greek religion on the Italian peninsula during Rome's protohistory, and by the later artistic imitation of Greek literary models by Roman authors.In matters of theology, the Romans were curiously eager to identify their own gods with those of the Greeks ("interpretatio graeca"), and to reinterpret stories about Greek deities under the names of their Roman counterparts.