What is a key difference between the earliest works of history, such as homer's the odyssey, and modern works of history?

The earliest works of history also incorporated mythology. Nowadays, works of history as basically factual reports, while the Odyssey is a very long story about a sailor who has been trying to go back home for decades. He fights cyclopes and meets many other mythical creatures on his way. Throughout his Journey, his fate is mostly guided by the actions of the gods.

i need the diagram.