The henge probably dates to around 2500-3000BC, contemporary with Stonehenge.
History is set to be rewritten after an archaeology team led by the University of Birmingham and the Ludwig Boltzmann Institute for Archaeological Prospection and Virtual Archaeology in Austria discovered a major ceremonial monument less than one kilometre away from the iconic Stonehenge.
Six stoneholes (A-F) were found in the northeast quadrant and three (I-K) were found in the western trench.
(Stoneholes G and H are putative stone sockets lying between the excavated ones; their positions are extrapolated from the known stones).
This is around a 1000 years after the big sarsen stone circle was erected.