Connor Black timeline By connorblack 206 end of Qin empire 206 begining of Han empire 220 end of Han empier 221 begining of Qin empire 226 end of Parthian empire 250 begining of Parthian empire 265 Ashoka embraced Buddhism 312 Constantine allowed Christianity 320 start of Gupta empire 323 begining of Alexanders Hellenistic empire 323 begining or Mauryan empire 507 begining of Roman empire 550 end of Gupta empire Apr 3, 1930 end of Hellenistic age Oct 19, 1931 end of Roman empire Mar 2, 2022 end of Mauryan empire