Timeline
| c.11,000 | Ice sheets melt |
| c.8,000 | Mesolithic hunter-gatherers settle coastal |
| c.6,000 | Langdale Axe Factory begins |
| c.3,200 | Castlerigg Stone Circle begun |
| c.50–59 | First rebellion by Venutius against Cartimandua, failed |
| 69 | Second rebellion by Venutius, he gains possession of Brigantian kingdom |
| 71 | Roman conquest of Brigantes begins |
| 78 | Agricola advances in Cumbria and places garrisons between the Solway and Tyne |
| 79–80 | Further military campaigns by Agricola |
| 122 | Hadrian's Wall begun |
| 142 | Antonius Pius abandons Hadrian's Wall |
| 164 | Hadrian's Wall reoccupied |
| c.400 | Romans begin withdrawing troops to Europe |
| 410 | Official end of Roman Britain, Coel Hen takes over as High King of Northern Britain |
| c.420 | Coel Hen dies, Ceneu takes over Northern Britain |
| c.450 | Ceneu dies; Rheged created by Gwrast Lledlwm |
| c.490 | Gwrast Lledlwm dies; Rheged given to Merchion Gul |
| 535 | Merchion Gul dies; Rheged divided into North, given to Cynfarch Oer, and South |
| 559 | Catraeth added to Rheged lands |
| c.570 | Cynfarch Oer dies; Urien Rheged becomes King |
| 573 | Caer-Guenddolau added to Rheged lands |
| c.585 | Battle of Ynys Metcaut; Urien killed by Morcant Bulc; Owain map Urien becomes King |
| c.597 | Owain map Urien killed by Morcant Bulc |
| c.616 | Angles of Bernacia enter Rheged |
| c.638 | Riemmelth, Princess of Rheged marries Oswiu, Prince of Northumbria |
| 685 | St Cuthbert granted land around Carlisle, where he founds a priory, and Cartmel |
| 875 | Danes sack Carlisle |
| c.925 | Norse arrive |
| 945 | Edmund I defeats Dunmail and cedes Cumbria to Malcolm I of Scotland |
| 1092 | William II restores Cumbria to England |
| 1136 | King Stephen forced to cede Cumbria to Scotland |
| 1157 | Henry II regains Cumbria |
| 1182 | Lancashire created, including part of South Cumbria |
| 1316 | Scottish raids along the west coast as far as Furness and Cartmel |
| 1322 | Scottish raids; the Abbot of Furness attempts to bribe Robert the Bruce |
| 1745 | Battle of Clifton, last military battle fought on English soil |
| 1951 | Lake District National Park established |
| 1974 | Modern county of Cumbria established |
Read more about this topic: History Of Cumbria