| Prehistory | Paleolithic | (2,500,000 BC – 10,000 BC) | Paleolithic Western Europe | Paleolithic Eastern Mediterranean | Paleolithic Persia | Paleolithic Egypt | Paleolithic Africa (beyond the Nile) | Paleolithic India and Central Asia | Paleolithic China (East Asia) | Paleolithic Oceania | Paleolithic North America | Paleolithic Central America | Paleolithic South America |
| Mesolithic | (10,000 BC – 8,000 BC) | Mesolithic Western Europe | Mesolithic Eastern Mediterranean | Mesolithic Persia | Mesolithic Egypt | Mesolithic Africa (beyond the Nile) | Mesolithic India and Central Asia | Mesolithic China (East Asia) | Mesolithic Oceania | Mesolithic North America | Mesolithic Central America | Mesolithic South America |
| Neolithic | (8,000 BC – 4,500 BC) | Neolithic Western Europe | Neolithic Eastern Mediterranean | Neolithic Persia | Neolithic Egypt | Neolithic Africa (beyond the Nile) | Neolithic India and Central Asia | Neolithic China (East Asia) | Neolithic Oceania | Neolithic North America | Neolithic Central America | Neolithic South America |
| Chalcolithic | (4,500 BC – 3,000 BC) | Chalcolithic Western Europe | Chalcolithic Eastern Mediterranean | Chalcolithic Persia | Chalcolithic Egypt | Chalcolithic Africa (beyond the Nile) | Chalcolithic India and Central Asia | Chalcolithic China (East Asia) | Chalcolithic Oceania | Chalcolithic North America | Chalcolithic Central America | Chalcolithic South America |
| Ancient History | Bronze Age | (3000 BC – 1200 BC) | Western Europe (Atlantic & Continental) Bronze Age | Aegean & Anatolia (Eastern Mediterranean) Bronze Age | Near East (Mesopotamia & Iran Plateau) Bronze Age | Nile Valley (Egypt & Nubia) Bronze Age | Africa Beyond the Nile (Saharan–Sahelian–Sub-Saharan) Bronze Age | Indus & Central Asia (South Asia Corridor) Bronze Age | East Asia (Yellow River Basin) Bronze Age | Bronze Age Oceania | Bronze Age North America | Bronze Age Central America | Bronze Age South America |
| Iron Age | (1200 BC – 500 BC) | Western Europe (Atlantic & Continental) Iron Age | Aegean & Anatolia (Eastern Mediterranean) Iron Age | Near East (Mesopotamia, Levant & Iran Plateau) Iron Age | Nile Valley (Egypt & Nubia) Iron Age | Africa Beyond the Nile (Sub-Saharan) Iron Age | Indus & Central Asia (South Asia Corridor) Iron Age | East Asia (Yellow & Yangtze River Basins) Iron Age | Iron Age Oceania | Iron Age North America | Iron Age Central America | Iron Age South America |
| Classical Antiquity | (500 BC – 500 AD) | Western Europe in Antiquity | Greco-Roman Antiquity | Persian Antiquity | Egyptian Antiquity | Africa beyond the Nile in Antiquity | Indian Antiquity | Chinese Antiquity | Classical Antiquity – Oceania | Classical Antiquity – North America | Classical Antiquity – Central America | Classical Antiquity – South America |
| Medieval History | Early Medieval | (500 AD – 1000 AD) | Early Medieval Western Europe | Early Medieval Eastern Mediterranean | Early Medieval Persia | Early Medieval Egypt | Early Medieval Africa (beyond the Nile) | Early Medieval India and Central Asia | Early Medieval China (East Asia) | Early Medieval Oceania | Early Medieval North America | Early Medieval Central America | Early Medieval South America |
| High Medieval | (1000 AD to 1300 AD) | High Medieval Western Europe | High Medieval Eastern Mediterranean | High Medieval Persia | High Medieval Egypt | High Medieval Africa (beyond the Nile) | High Medieval India and Central Asia | High Medieval China (East Asia) | High Medieval Oceania | High Medieval North America | High Medieval Central America | High Medieval South America |
| Late Medieval | (1300 AD – 1500 AD) | Late Medieval Western Europe | Late Medieval Eastern Mediterranean | Late Medieval Persia | Late Medieval Egypt | Late Medieval Africa (beyond the Nile) | Late Medieval India and Central Asia | Late Medieval China (East Asia) | Late Medieval Oceania | Late Medieval North America | Late Medieval Central America | Late Medieval South America |
| Early Modern History | Renaissance and Reformation | (1500 AD – 1600 AD) | Renaissance and Reformation Western Europe | Renaissance and Reformation Eastern Mediterranean | Renaissance and Reformation Persia | Renaissance and Reformation Egypt | Renaissance and Reformation Africa (beyond the Nile) | Renaissance and Reformation India and Central Asia | Renaissance and Reformation China (East Asia) | Renaissance and Reformation Oceania | Renaissance and Reformation North America | Renaissance and Reformation Central America | Renaissance and Reformation South America |
| Scientific Revolution and State Formation | (1600 AD – 1700 AD) | Scientific Revolution and State Formation Western Europe | Scientific Revolution and State Formation Eastern Mediterranean | Scientific Revolution and State Formation Persia | Scientific Revolution and State Formation Egypt | Scientific Revolution and State Formation Africa (beyond the Nile) | Scientific Revolution and State Formation India and Central Asia | Scientific Revolution and State Formation China (East Asia) | Scientific Revolution and State Formation Oceania | Scientific Revolution and State Formation North America | Scientific Revolution and State Formation Central America | Scientific Revolution and State Formation South America |
| Enlightenment and Proto-Industrial | (1700 AD – 1800 AD) | Enlightenment and Proto-Industrial Western Europe | Enlightenment and Proto-Industrial Eastern Mediterranean | Enlightenment and Proto-Industrial Persia | Enlightenment and Proto-Industrial Egypt | Enlightenment and Proto-Industrial Africa (beyond the Nile) | Enlightenment and Proto-Industrial India and Central Asia | Enlightenment and Proto-Industrial China (East Asia) | Enlightenment and Proto-Industrial Oceania | Enlightenment and Proto-Industrial North America | Enlightenment and Proto-Industrial Central America | Enlightenment and Proto-Industrial South America |
| Modern History | Industrial Era | (1800 AD – 1870 AD) | Industrial Era Western Europe | Industrial Era Eastern Mediterranean | Industrial Era Persia | Industrial Era Egypt | Industrial Era Africa (beyond the Nile) | Industrial Era India and Central Asia | Industrial Era China (East Asia) | Industrial Era Oceania | Industrial Era North America | Industrial Era Central America | Industrial Era South America |
| Long 19th Century | (1870 AD – 1914 AD) | Long 19th Century Western Europe | Long 19th Century Eastern Mediterranean | Long 19th Century Persia | Long 19th Century Egypt | Long 19th Century Africa (beyond the Nile) | Long 19th Century India and Central Asia | Long 19th Century China (East Asia) | Long 19th Century Oceania | Long 19th Century North America | Long 19th Century Central America | Long 19th Century South America |
| World War Era | (1914 AD – 1945 AD) | World War Era Western Europe | World War Era Eastern Mediterranean | World War Era Persia | World War Era Egypt | World War Era Africa (beyond the Nile) | World War Era India and Central Asia | World War Era China (East Asia) | World War Era Oceania | World War Era North America | World War Era Central America | World War Era South America |
| Contemporary History | Cold War Era | (1945 AD – 1985 AD) | Cold War Era Western Europe | Cold War Era Eastern Mediterranean | Cold War Era Persia | Cold War Era Egypt | Cold War Era Africa (beyond the Nile) | Cold War Era India and Central Asia | Cold War Era China (East Asia) | Cold War Era Oceania | Cold War Era North America | Cold War Era Central America | Cold War Era South America |
| Allisonian Era | (1985 AD – 2025 AD) | Allisonian Era Western Europe | Allisonian Era Eastern Mediterranean | Allisonian Era Persia | Allisonian Era Egypt | Allisonian Era Africa (beyond the Nile) | Allisonian Era India and Central Asia | Allisonian Era China (East Asia) | Allisonian Era Oceania | Allisonian Era North America | Allisonian Era Central America | Allisonian Era South America |
| Deasy Era | (2026 AD – 2065 AD) | Deasy Era Western Europe | Deasy Era Eastern Mediterranean | Deasy Era Persia | Deasy Era Egypt | Deasy Era Africa (beyond the Nile) | Deasy Era India and Central Asia | Deasy Era China (East Asia) | Deasy Era Oceania | Deasy Era North America | Deasy Era Central America | Deasy Era South America |