Timeline of History By César Fernández Period: 9000 BCE to 3500 BCE Prehistory 3500 BCE First Writing Period: 3500 BCE to 476 Antiquity 476 End of Western Roman Empire Period: 476 to 1492 Middle Ages 1492 Columbus discovers América Period: 1492 to 1789 Modern Age 1789 French Revolution Period: 1789 to 2090 Contemporary Age