legend between truth and fiction
A legend is a traditional tale popularly regarded as true but containing a mixture of fact and fiction. A legend is tale, usually told regionally and based in part in fact, usually to strengthen ones belief in his or her country or sitting lord. An example would be the Arthurian legends or the Iliad.
Legends are sometimes distinguished from myths in that they concern human beings rather than gods, and sometimes in that they have some sort of historical basis whereas myths do not; but these distinctions are difficult to maintain consistently
Legend vs Myth:
Myths are generally referred to as traditional stories occuring in a timeless past.
They may involve supernatural elements and are beyond the frontiers of logic. Myths may also give a religious explanation. Myths have their chronology of events and cannot be related to present timelines. They may also be imaginary things.
Legends, however, are stories about real people who are famous for doing something brave or extraordinary. Legends may be told upon topics of historical importance. It is not an explanation of something nor a symbolic narrative, they're based on an event.
Examples of myths and legends
It is a Greek myth that Prometheus stole fire from Zeus, the chief god, and gave it to humans so that they could keep themselves warm. To punish him, Zeus chained Prometheus to a rock where his liver was eaten by an eagle every day but grew again every night. There is nothing to prove it and we do not even have a time frame to show so it is a myth.
A common contemporary myth is that a cat crossing the road in front of you brings bad luck. This is a myth as it not based on any solid evidence and is an unproven thing.
Stories of heroes like Robin Hood and King Arthur are related to a certian time period and hence they are legends.
Proof
Myths are often stories of supernatural beings and of a timeless past so there is no objective proof. Myths may go on to explaing things like: The evolution of man, he presence of the sun etc but since there isn't any subjective truth to support them. They also do not have any time frame attached to them to prove their time line.
Legends are stories based on historical events or a person and hence usually have a time frame to them. They're said to be stories about real people and not supernatural beings.
Legends can be related to a certain chronology of events with reference to present events while myths cannot be organised into present day chronology of events.
Fact/Fiction
Myths are frequently used synonymously with fiction.Since there is no supporting structure for a myth, they're more often than not considered fiction. The word Mythology has been coined for myths related to religious or supar natural myths. Other common day myths or unproved beliefs are considered untrue or fiction.
Legends describe real people and real events and hence are facts though distorted. Legends are told and re-told and hence newer versions of the same fact have been spoken. Though legends may be distorted they are said to be based on facts.

Comparison chart | Legend | Myth | Is there evidence that the event occurred?: | There may be proof to support the story as it reportedly happened during a specific historical time period. | There are no actual events or time frame to support that the events or people were really or actually happened. | When did it happen?: | Past time or historical | Past time and historical | Is it fact or fiction?: | Facts are distorted or exaggerated. Some fiction | There is no evidence to prove it was fact. Fictional stories explaining how "the world was created" or some type of natural situation that occurred on Earth. | Who do they talk about?: | Actual heroes or people who do admirable or heroic deeds; | Gods of ancient cultures | What are they about?: | Legends feature an actual cultural hero; but includes imaginative elements. | Traditional narrative that explains natural phenomena through symbolism; often involves the gods of ancient cultures. | What element is used?: | Imaginative element is used to help explain or tell the story. | Symbolism is used to explain or demonstrate the natural "situation or event" that the story is about. |

Examples of famous legends * Atlantis * Big Foot * Fountain of Youth * Helen of Troy and the Trojan War * King Arthur and the Knights of the Round Table * Legends of Africa * Odysseus * Robin Hood

Legend اسطورة يحتمل فيها حقيقة
Myths : اساطير اقرب للخرافه folk tale حكاية شعبيه