Take a look at this short clip from the BBC’s Time Watch series on how Stonehenge evolved through numerous iterations.

While the multiple stages of building Stonehenge are relatively understood by modern archeologists, how they were erected and their exact purpose and usage, are still fiercely debated topics. Many theories have been postulated for what the site was used for, some suggesting that it was a domain of the dead and burial centre, to others suggesting it was a ritual site and place of healing. It is agreed however that the site was probably multi-functional in its usage and general consensus agrees that the monument was erected around 2500BC. You can learn more about Stonehenge in an upcoming issue of How It Works.