The correct answer to this open question is the following.
Myths are powerful sources of sacred truth (sometimes in a deeper, not always literal sense). In religious studies, they do not carry with the (now typical) connotation or implication of falsehood. Originally conveyed orally, they often consist of stories or narratives involving primordial times about the origins of the world, universe, and/or human beings.
Myths are so powerful that historically, people believed them and are transmitted from one generation to the other. As magical as they appear, Myths are part of peoples' traditions and culture. They convey a powerful message that can be part of how people think about religious issues or pagan issues. Many times, the Myth involves heroic characters fighting evil characters in a constant battle between good and evil.
Myths can be found in Sumerian mythology, Egyptian mythology, Greek and Roman mythology.