History of the British Isles

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History of the British Isles
Overview United Kingdom England Isle of Wight Isles of Scilly Scotland Shetland Orkney Inner Hebrides Outer Hebrides Wales Anglesey Northern Ireland Ireland Isle of Man (Mann) Channel Islands Jersey Guernsey
Prehistoric period Prehistoric Britain Prehistoric England Prehistoric Scotland Prehistoric Shetland Prehistoric Orkney Prehistoric Wales Prehistoric Ireland Prehistoric Mann
Classical period Roman Britain Roman Scotland Roman Wales Protohistoric Ireland, Roman Ireland End of Roman rule Sub-Roman Britain
Medieval period Medieval England Early medieval England High medieval England Late medieval England Medieval Scotland Early medieval Scotland High medieval Scotland Late medieval Scotland Medieval Wales Early medieval Wales High medieval Wales Late medieval Wales Medieval Ireland Early medieval Ireland High medieval Ireland Late medieval Ireland Medieval Mann
Early modern period Early modern Britain Early modern England Early modern Scotland Early modern Wales Early modern Ireland Early modern Mann
Late modern period United Kingdom (since 1707) Victorian period Edwardian period First World War Interwar period Second World War World Wars (Wales) Post-war period (political history) Post-war period (social history) Late modern Ireland Late modern Mann
Related House of Plantagenet House of Lancaster House of York Monarchs
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The history of the British Isles began with its sporadic human habitation during the Palaeolithic from around 900,000 years ago. The British Isles has been continually occupied since the early Holocene, the current geological epoch, which started around 11,700 years ago. Mesolithic hunter-gatherers migrated from the Continent soon afterwards at a time when there was no sea barrier between Britain and Europe, but there was between Britain and Ireland. There were almost complete population replacements by migrations from the Continent at the start of the Neolithic around 4,100 BC and the Bronze Age around 2,500 BC. Later migrations contributed to the political and cultural fabric of the islands and the transition from tribal societies to feudal ones at different times in different regions.

England and Scotland were sovereign kingdoms until 1603, and then legally separate under one monarch until 1707, when they united as one kingdom. Wales and Ireland were composed of several independent kingdoms with shifting boundaries until the medieval period.

The British monarch was head of state of all of the countries of the British Isles from the Union of the Crowns in 1603 until the enactment of the Republic of Ireland Act in 1949.