history periods By lcguisado 9000 BCE PALEOLITHIC AGE the paleolithic started 9000000 BC Period: 2300 BCE to 1 CE METAL AGE Period: 1200 BCE to 4000 BCE NEOLITHIC AGE NEOLITHIC AGE STARTED 12.000.000 BC Period: 476 to 1492 ANTUQUITY Period: 476 to 1492 MIDDLE AGES Period: 1500 to 1800 MODERN AGES Period: 1800 to 2018 CONTEMPORANY AGE