'This was a pioneering achievement': Stone Age people put up posts to observe the solstices near Stonehenge long before the stones of sacred site were placed

The discovery of two ancient holes at Stonehenge suggests people placed posts there to help observe the summer and winter solstices around 5,000 years ago.

Source: [Live Science](https://www.livescience.com/archaeology/this-was-a-pioneering-achievement-stone-age-people-put-up-posts-to-observe-the-solstices-near-stonehenge-long-before-the-stones-of-sacred-site-were-placed)