The Arsacid Dynasty ruled Parthia, which included the Iranian plateau and intermittently Mesopotamia, from 253 BC until their overthrow by the Sassanid Dynasty in AD 224. The members of this dynasty include:
... typical overall chemical reaction of photosynthesis is:
6H2O + 6CO2 + light → C6H12O6 (glucose) + 6O2
In simple English terms, this is carbon dioxide ...