Ancient History Timeline By 117271 Period: 3500 BCE to 3000 BCE Sumerian Cuneiform Period: 2580 BCE to 2560 BCE The Construction of the Great Pyramid 447 BCE Construction of Parthenon 280 BCE Celts Sack Delphi Period: 218 BCE to 201 BCE 2nd Punic War Period: 74 BCE to 73 BCE Siege of Masada Period: 58 BCE to 50 BCE Caesar Conquest of Gaul 79 The Destruction of Pompeii