MYSTERY SOLVED! 😱

We FINALLY (almost certainly...) know where Stonehenge's giant sarsen stones come from!

THREAD ⬇️ Weighing up to 30 tonnes and standing up to 7 metres tall, the sarsens form all 15 stones of Stonehenge's central horseshoe.

They also form the uprights and lintels of the outer circle, and outlying stones like the Heel Stone and the Slaughter Stone.

History lesson time! 📚Britain’s prehistoric monuments span almost four millennia - from the time Neolithic farmers first began to build using timber, earth and stone, to the invasion of the Romans in AD 43.

We bring you England's prehistoric monuments ⬇️A THREAD ⬇️ Long barrows are some of the earliest prehistoric monuments, dating from around 6,000 years ago when people in Britain began to farm and build things using stone and wood. 🌳 Unsurprisingly it is a long earth mound, with either a stone or timber burial chamber inside.

Our historic places are bursting with stories about the people who built, conquered and lived in them. We thought #NationalStorytellingWeek would be a great time to tell the story of how we became a charity in ten tweets.

Are you sitting comfortably? Then we'll begin. The extraordinary collection of buildings and monuments now in our care began to be amassed in 1882. At the time, heritage was the responsibility of the Office of Works (the government department responsible for architecture and building) #NationalStorytellingWeek 1/10