10000 BC	permanent settlement - mesolithic
7-6 millenium BC	the transformation of the oceanside peninsula into a group of offshore islands
neolithic revolution 8000-2000 BC	agriculture, permanent settlement, domestic animals
1700 BC	Stonehenge
the Bronze Age 1800-600 BC	metallurgy begins : copper, bronze, gold, tin
1000 BC	introduction of the plough
Iron Age 600 BC	gradual introduction of iron ; rapid multiplication of hill forts ; the introduction of horse power