Source A: A description of Pax Romana 'The Pax Romana was a time of relative peace and stability across the Roman Empire, lasting approximately 200 years from 27 BC to AD 180. During this period, the empire experienced economic growth, advancements in architecture, and increased trade. Roman law and order were maintained, and many cities prospered.' Provenance: Excerpt from a history textbook, 21st century.

Source B: A Roman historian's view 'During this period, the Roman roads were built and maintained, trade flourished across the empire, and law and order were enforced by Roman officials. These developments contributed to the stability and prosperity of Roman society.' Provenance: Ancient historian Tacitus, AD 100.

Source C: A Roman citizen's perspective 'During the Pax Romana, we enjoyed peace, safety, and prosperity. The roads and aqueducts made life easier, and the laws protected us. Our cities thrived, and trade brought wealth to many.' Provenance: Letter from a Roman citizen, AD 150.