Almost all scholars agree that the Book of Joshua holds little historical value for early Israel and most likely reflects a much later period.[3] The earliest parts of the book are possibly chapters 2–11, the story of the conquest; these chapters were later incorporated into an early form of Joshua written late in the reign of king Josiah (reigned 640–609 BCE), but the book was not completed until after the fall of Jerusalem to the Neo-Babylonian Empire in 586 BCE, and possibly not until after the return from the Babylonian exile in 539 BCE.[4]:10–11