Historic England: Our full list of archaeological periods
Palaeolithic  1,000,000 BC to 10,000 BC
Lower Palaeolithic  1,000,000 BC to 150,000 BC
Middle Palaeolithic 150,000 BC to 40,000 BC
Upper Palaeolithic 40,000 BC to 10,000 BC
Mesolithic 10,000 BC to 4000 BC
Early Mesolithic 10,000 BC to 7000 BC
Late Mesolithic 7000 BC to 4000 BC
Early Prehistoric 1,000,000 BC to 4000 BC
Neolithic 4000 BC to 2200 BC
Early Neolithic 4000 BC to 3300 BC
Middle Neolithic 3300 BC to 2900 BC
Late Neolithic 2900 BC to 2200 BC
Bronze Age 2600 BC to 700 BC
Early Bronze Age 2600 BC to 1600 BC
Middle Bronze Age 1600 BC to 1200 BC
Late Bronze Age 1200 BC to 700 BC
Iron Age 800 BC to AD 43 AD
Early Iron Age 800 BC to 300 BC
Middle Iron Age 300 BC to 100 BC
Late Iron Age 100 BC to AD 43
Later Prehistoric 4000 BC to AD 43
Prehistoric 1,000,000 BC to AD 43