The Foundation Period By kknezeak 206 End of Qin Empire 206 BC 206 Start of Han Empire 206 BC 220 End of Han Empire 220 AD 221 Start of Qin Empire 221 BC 224 End of Parthian Empire 224 AD 304 Ashoka promoting Buddhism 304 AD 313 Constantine issued edict allowing Christianity 313 AD 320 Start of Gupta Empire 320 AD 321 Start of Mauryan Empire 321 B.C. 323 End of Alexander's Empire 323 B.C. 336 Start of Alexander's Empire 336 B.C. 550 End of Gupta Empire 550 AD Oct 20, 1914 End of Roman Empire 14 AD Jan 1, 1927 Start of Roman Empire 27 BC Mar 2, 2022 End of Mauryan Empire 185 BC Jan 1, 2029 Start of Parthian Empire 129 BC
