Describe the sources that historians have used to study Greek history. What are the limitations of these sources?

Sources:https://nerdfighteria.info/v/Q-mkVSasZIM/Chapter 5: The Greek World from the Bronze Age to the Roman Conquest by Nadejda Williams from World History: Culture, States, and Societies to 1500 by Berger et al.Chapter 6: The Roman World from 753 BCE to 500 CE by Nadejda Williams from World History: Culture, States, and Societies to 1500 by Berger et al.https://nerdfighteria.info/v/oPf27gAup9U/Pick one of the following questions to answer. Cite the previous resources at least three (3) times in the essay please. Feel free to add additional resources.1. Describe the sources that historians have used to study Greek history. What are the limitations of these sources? How do modern historians overcome these limitations?2. Discuss the impact of the Persian and Peloponnesian Wars on the Greek world specifically Athens and Sparta. Do you see any connection between the wars?3. What made it possible for Philip II and Alexander the Great to conquer the Greek World where the much larger Persian Empire had failed?4. Discuss the disintegration of Alexander the Great’s empire following his death. Why did it fall apart so quickly?5. Which specifics features enabled a small village on the Tiber River come to conquer Italy and most of the Mediterranean World?6. Discuss the transition of Rome from a Republic to an Empire. Is it even accurate to call Rome a Republic before the reign of Augustus? Or is it an empire in every way except for name? Hint: A Roman Empire is different than The Roman Empire.7. The period from 27 BC to 180 AD is known as the Pax Romana where Rome was powerful and prosperous. By 476 the Roman Empire in the West was no more, yet the empire in the East survived. What factors account for this and why?