In 156 AD, the Roman Empire was at its height, experiencing a period of relative peace and stability known as the Pax Romana. This era allowed for economic prosperity and cultural exchange across the vast territories of the empire, which stretched from Britain to the Middle East. During this time, the philosopher and physician Galen was active, contributing significantly to the fields of medicine and anatomy. His works would influence medical understanding for centuries. Additionally, the Han Dynasty in China was flourishing, marking a time of significant advancements in technology and trade along the Silk Road.