Based on the chart, name two things that the empires have in common. Roman Empire Han Dynasty Gupta Empire strong central government strong central government strong central government trade via the Silk Road trade via the Silk Road trade via the Silk Road reliance on taxes to support empire reliance on taxes to support empire reliance on taxes to support empire no common religion until very late Confucianism functions as unifying system of beliefs Hinduism is common religion Latin used as official language, but no common spoken language Han Chinese is common language Sanskrit is literary language, but no common spoken language