Time-Line of Portland
| Years Ago | Period / People | Place |
Graphic
|
| 0 |
Present Henry VIII |
Portland Castle |
 |
| 1,000 |
Normans
|
Rufus Castle |
 |
| 2,000 |
Romans
|
The Verne Maiden Castle |
 |
| 3,000 | |||
| 4,000 | Bronze Age | Stonehenge |
 |
| 5,000 | |||
| 6,000 | Neolithic | Avebury |
 |
| 7,000 | Late Mesolithic | ||
| 8,000 |
Culverwell |
 |
|
| 9,000 | Early Mesolithic | Star Carr |
 |
| 10,000 | |||
| 11,000 | |||
| 12,000 | Late Palaeolithic | The Verne & Hengistbury Head |
 |
| 50,000 | Upper Palaeolithic | Caves in the Dordogne, France |
 |
| 100,000 | Middle Palaeolithic | High Lodge, Suffolk |
 |
| at
least 3 million |
Lower Palaeolithic | Boxgrove, Sussex |
 |
| 120 to 130 Million |
Jurassic | Dinosaurs
& other fossils, Portland Quarries |
 |