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4000 BCE
3900 BCE
3800 BCE
3700 BCE
3600 BCE
3500 BCE
3400 BCE
3300 BCE
3200 BCE
3100 BCE
3000 BCE
2900 BCE
2800 BCE
2700 BCE
2600 BCE
2500 BCE
4000 BCE - 3500 BCE: Clyde Tombs of Western Scotland and the Carlingford Tombs of Northern Ireland are constructed.
4000 BCE: Medway Tombs of Kent, including Chesnuts, Addington and Coldrum, are constructed.
3800 BCE - 2500 BCE: Wessex Long Barrows are constructed in the U.K.
3500 BCE: Cotswold-Severn Group Long Barrows are constructed, which spanned from the north Wessex Downs, Cotswold Hills, South Wales coast, and the Brecon Beacons.