These stories are not pure historical records in the modern sense. They were written to convey religious messages. However, that doesn't mean there is no historical value. Archaeological evidence has sometimes supported aspects of the stories. But overall, they are more about teaching religious values and the relationship between God and his people than being straightforward historical accounts. For example, the stories of the patriarchs like Isaac and Jacob may contain elements of real family lineages but are also filled with religious symbolism and moral lessons.
The Old Testament stories on this site are a mix. While some could potentially be based on real historical happenings, they have been passed down and shaped by religious beliefs. For instance, the story of Noah's Ark may not be a completely literal historical account but could represent a real event that was then embellished with religious meaning. So, it's hard to say they are strictly accurate historical accounts.
It's a matter of debate. Some parts may have a basis in historical events, while others are more about religious teachings. For example, the story of the Exodus might have some historical roots, but it also contains elements of religious significance.